Free Essay

Oral Exam

In:

Submitted By tainguyen5501
Words 951
Pages 4
1. Explain the I/O process.
Describes any operation, program, or device that transfers data to or from a computer. Typical I/O devices are printers, hard disks, keyboards, and mouses.
2. You typed “abcd”, but the local printer prints garbled text. How do you resolve this issue? You have the wrong printer driver. For the printer you are using. Delete the current printer configuration and install the right driver. If you don’t have the disk with the driver go online and download the correct driver.
3. What is the OSI model? (Open Systems Interconnection) is a model that characterizes the internal funcions of a communication system by partitioning it into abstraction layers. It helps provide error-free communications across a network and provide a path needed by applications. The seven layers are 1. Physical, 2. Data link, 3.network, 4.transport, 5.session, 6. Presentation, 7. Application,
4. Use the OSI model to explain how an email message from you gets read by the recipient on his/her computer?They physical layer conveys the bit stream through the network at the electrical and mechanical level. The data-link layer provides synchronization for the physical level and does bit-stuffing for strings of 1’s in excess of 5.
5. A user reports that they cannot download a file from the Internet. Using the OSI model, what are some of the questions a network administrator may ask to troubleshoot this problem? Check your tcp/ip configuration, ping the loopback address, clear the address resolution protocol (ARP) cache.
6. Describe popular broadband solutions available to consumers in todays market?
1.DSL, digital subscriber line, uses copper wires and range from the speed of several hundred kbps to millions of bits per second. 2. Cable modem, use coaxial cable and provide speed of 1.5 mbps or more. 3. Fiber, converts electrical signals carrying data to light and sends the light through transparent glass fibers. Exceeding speeds of DSL or Cable by tens or even hundreds of Mbps. 4. Wireless, connects home or business using a radio link between customers location and the service providers facility. It can be mobile or fixed. Mobile wireless broadband are available from mobile telephone service providers and other. A require special pc card with built in atenna that plugs into a user’s laptop computer. Generally they provide lower speeds, in the range of several hundred kbps.
7. A small law office is equipped with a broadband service. The office network has recently encountered various symptoms of degraded services. Some individuals are not able to access data from the file server hosted in house from time to time, while some others are not able to access the email and database through the internet occasionally. How do you propose to determine the cause and correct it?
8. Define the TCP/IP suite of protocols
1. Data link, address resolution protocol/reverse address, datalink switching client access protocol, 2. Network layer, 3, transport layer, 4, session layer, 5. Application layer, 6. Routing layer, 7. Tunneling layer, 8. security
9. How do you determine which ports within TCP/IP are open or have established connections at any given time? There are several ways to check for open ports, one is using port scanners tools. They are free and you don’t have to install any software to scan for open ports. Also you can scan any computer as long as you know the IP address. You can also use Netstat to check for open ports if you are a real admin.
10. A user reports she cannot access the Internet. Describe some of the tasks one would perform related to the TCP/IP protocol in order to troubleshoot this problem. Check your TCP/IP configuration, Ping the loopback address, Ping your computer’s IP address, Clear the address resolution protocol ARP cache.
Quiz 2
1. How would you troubleshoot network connectivity as it realtes to TCP/IP 1. Check TCP/IP configuration, 2. Ping loopback address, 3. Ping your computer’s IP address, 4. Clear the address resolution protocol ARP cache, 5. Verify the default gateway, 6. Ping the IP address of the other computer, 7. Verify persistent route table entries, 8. Use the tracert command, 9. Verify server services on the other computer, 10. Check IP security on the server.
2. Define a windows domain a windows domain is a form of computer network in which all user accounts, computers, printers and other security principals, are registered with a central database (called a directory service) located on one or more clusters of central computers known as domain controllers.
3. What are the steps to determine what domain a computer belongs to? Open system by clicking start button, right click computer, and then click on properties. If your computer is connected to a domain, under computer name, domain, and workgroup settings, you’ll see the name of the domain your computer belongs to. If your computer is connected to a workgroup, you’ll see the nae of the workgroup your computer belongs to.
4. List 3 possible reasons why a user cannot log on to a domain. Changes to the group policy such as blocking interactive logins on a domain member computers or by users in a certain group or OU, Check the settings on user account because perhaps some script has placed the wrong restrictions on the accounts, the domain name may be incorrect.
5. What function can windows server provide for a SOHO? (NetServerDiskEnum) returns a list of locak disk drives on a server, (NetServerEnum) List all visible servers of a particular type or types in the specified domain, (NetServerGetInfo) Returns configuration about a specified server, (NetServerInfo) Sets the operating parameters for a server.

Similar Documents

Free Essay

Student

...University 01/2010 – Present Director Assistant, Canadian Chamber of Commerce in Shanghai 06/2009 – 08/2009 • Designed 2010 Expo Guide for Canadians in Shanghai. • Coordinated events on Canada’s Day and assisted Administrative Director with related projects • Located and entered data into several databases; made phone calls, and ensured timely mail processing. • Assisted administrative team members with clerical function. Dining Service Associate, University of Minnesota – Twin Cities 09/2009 – 12/2009 • Maintained inventory of standard dining service supplies and assists manager coordinate attendants. Member, Actuarial Club in University of Minnesota – Twin Cities 01/2009 – 12/2009 • Arranged the preparation of Casualty Actuarial Society (CAS) exam Volunteer, Students Today Leaders Forever 03/2009 – 12/2009 • Assisted the donation of food to Minnesotans at risk of hunger. Volunteer, in school for the Mute and the Deaf in Zhoushan, Zhejiang Province 2006 – 2009 • Taught disabled students Mandarin. Policy-analyst, Model United Nation in Shanghai K.J. Senior High School 2006 – 2008 • Analyzed UN policies for Model UN conferences HONORS/ AWARDS Honor Program, Awarded by Associate Dean of University of Minnesota – Twin Cities Global Excellent Scholarship, Awarded by University of Minnesota – Twin Cities Dean's List, Awarded by University of Minnesota – Twin Cities st th 1 prize, World 20 Odyssey of Mind Competition in China Area 09/2008 – 12/2009 09/2008 – 12/2009 Fall 2008, Fall 2009...

Words: 354 - Pages: 2

Premium Essay

Career Preparation

...BLAW 2210 Term Paper Career Preparation My top two career choices are corporate financial analysis in investment banking and actuary. I will be discussing the legal environment of my career choices, taxing authorities, entity structure, graduate school in order to obtain certain license, self-assessment of my chosen careers. First, I will discuss how I can work as a corporate financial analysis in investment banking. After that, I will talk about what I need prepare to be an actuary. 1.corporate financial planning and analysis The responsibility of a corporate financial planing and analysis is to support management planning and decision making by identifying, maintaining, and evaluating information,as well as recommending actions. * Legal environment * Entity structure Investment banking is concerned with the primary function of assisting the capital market in its function of capital market intermediation, i.e. the movement of financial resources from those who have them means investors, to those who need to make use of them means issuer for generating profit. Therefore, it can be inferred that investment banks are those institutions that are the counterparts of banks in the capital market in the function of intermediation in resources allocation. Investment banks carried on carious activities it helps companies and governments and their agencies to raise money by issuing and selling securities in the primary market. They assist public and private corporations...

Words: 3595 - Pages: 15

Premium Essay

Gum Disease Research Paper

...IM - Inspirationdental.com - Blog - Types of Gum Disease Gum disease, also known as periodontitis, affects the surrounding and supporting tissue of your gums as well as the underlying jawbone. Gum disease begins when the toxins that are found in plaque begin to eat away at the tissue surrounding your teeth. The bacterium sticks to your gums, breeds and causes a bacterial infection. The longer the infection goes untreated by you and your dentist in Riverview, the deeper the inflammation and irritation gets between your teeth and gums. If not treated by your Riverview FL dentist, gum disease can result in tooth loss and other health problems. Different Types of Gum Disease There are several different types of gum disease, but all require immediate...

Words: 395 - Pages: 2

Premium Essay

Research Paper of Hpv

...are to vaccinate young people before they become exposed to HPV. However women up to the age of 26 may “catch up” and get vaccinated. Only about a third of adolescent women have had all three doses of vaccine as recommended. While cervical HPV rates are highest among young women, rates of infection in other parts of the body (e.g, mouth, anus) are currently being examined. The aim of this study was to assess the prevalence of HPV in the three main sites on the body in a group of young unvaccinated inner city women. METHODS Participants In the Bronx, New York City, 97 sexually active women aged 15-22 were enrolled in the study at Mt. Sinai Adolescent Health Center between July 2005 and March 2006. All women coming in for gynecological exams, sexually transmitted infection treatment or screening, and follow up for abnormal pap smears or genital warts were included. The women in the study were  mostly African American (54%) and Latina (39%) with an with a median age of 19. The median age for losing virginity was 14. Most (82%) reported having 3 more sexual partners. Almost half, forty-seven percent, had contracted a sexually transmitted infection before. Over a third had atypical pap results as well as having previously being diagnosed with chlamydia. All the young women provided cervical and anal specimens collected using “Thin Prep” using a...

Words: 724 - Pages: 3

Premium Essay

Chlamydia and Gonorrhea

...Introduction: STI’s by definition are infections of the reproductive tract that is caused by microorganisms. These microorganisms are transmitted through vaginal, anal, or oral sexual intercourse. STI’s pose a serious threat to the health of women and also to the health of a fetus and newborn. Chlamydia is the most common bacterial STI, followed by Gonorrhea. These two sexually transmitted infections are characterized by cervicitis. Cervicitis is inflammation or infection of the cervix. It can be either symptomless or cause bleeding on contact and purulent discharge of the vagina [ (Ricci, 2013) ]. Chlamydia: Chlamydia is caused by the bacterium known as Chlamydia trachomatis. This bacterium is hard to detect because many women are asymptomatic and do not seek testing. If left untreated it can cause serious and permanent damage to a woman’s reproductive system; such as it can make it very difficult or impossible for a woman to become pregnant and can also cause fatal ectopic pregnancies and pre-term labor [ (Chlamydia-CDC Fact Sheet (Detailed), 2014) ]. It can also spread to a woman’s uterus and fallopian tubes, causing pelvic inflammatory disease, and pelvic pain. If a baby is born to an infected mother, it may contract eye and respiratory infections during childbirth [ (Toro, 2008) ]. Chlamydia is most common among young, sexually active persons aged 14-24. This is nearly three times the prevalence of persons aged 25-39. Chlamydia is 6.2 times more prevalent amongst...

Words: 1714 - Pages: 7

Premium Essay

Teens

...Running Head: ADOLESCENTS AND SEXUALLY TRANSMITTED DISEASES Adolescents Risky Sexually Behaviors and Sexually Transmitted Diseases Shemeka Y. Coleman Limestone College Abstract In today’s society many adolescents are engaging in risky sexually behavior that is leading to a widespread of sexually transmitted diseases (STD’s). Adolescents are at a high risk of sexually transmitted disease because of the lack of sexually education and knowledge about sex in general and the effects and consequences of engaging in risky sexually behavior without the proper education or knowledge of the activities in which they choose to engage. Over a third of all high school students report being sexually active and of those students, ¼ will contract a sexually transmitted disease before they even graduate from high school. This results in over a million teenagers a year who will get some type of sexually transmitted disease. (Krowchuck, 1998). Most adolescents do not have knowledge of exactly what a sexually transmitted disease is, let alone the different types of sexually transmitted diseases. With proper education of the different types of sexually transmitted diseases, symptoms, and prevention methods, adolescents will be better equipped and prepare for the consequences of the action of engaging in sexually behavior will occur. Adolescents Risky Sexually Behaviors and Sexually Transmitted Diseases On high school campuses around...

Words: 3657 - Pages: 15

Premium Essay

Dental Caries

...Dental Caries Historical Timeline �� 2500 B.C.—Chinese—little white worms with black spots on heads caused decay �� 350 B.C Aristotle, et. al., figs and sweets caused decay �� 1819—Livei Parmly linked bacteria to decay created by a combination of lodged food and an “active poison which causes teeth to corrode.” • 1840—John Tomes—heat and moisture caused decomposition in the mouth �� 1881—Miles & Underwood—germs secreted acid that led to decay �� 1889—W.D. Miller— chemico-parasitic theory— carbohydrate retention + acidogenic bacteria 1938—H. Trendley Dean links fluoride to caries reduction �� 1955—Crest develops first fluoridated toothpaste �� 1990s—water fluoridation celebrates 50 years Dental caries is an infectious, CHRONIC , multifactorial disease caused by bacteria that is characterized by the destruction of enamel from acids leaving behind a preliminary “white spot lesion.” �� This process continues until the more organic, inner dental tissues are destroyed. D/W gives definitions of different types of caries. Caries Process �� Begins in the enamel and progresses through to the subsequent tooth layers in a triangular pattern until it reaches the pulp. Tooth cavitation = a carious lesion �� Lesions appear radiolucent on radiographs. Incipient lesions usually appear in the interproximal areas and can be arrested through proper home care or fluoride treatments. Zones of Demineralization �� Zone 1—destruction—caries from enamel surface into...

Words: 1339 - Pages: 6

Free Essay

Community Intervention for Dental Caries

...COMMUNITY INTERVENTION FOR DENTAL CARIES Community Intervention for Dental Caries Avril James-Hurt MPH 607: Community Health Analysis Benedictine University Professor Uche S. Onwuta Background Rural Healthcare Disparities The Agency for Healthcare Research and Quality (AHRQ) (2010) defines rural as a twofold concept: “micropolitan statistical area” of 10,000 to 50,000 inhabitants and “noncore statistical area”, which is smaller than a micropolitan area.  Despite 25 percent of Americans live in rural communities, they have unique healthcare concerns; “Compared with urban Americans, rural residents have higher poverty rates… tend to be in poorer health, have fewer doctors, hospitals, and other health resources, and face more difficulty getting to health services” (AHRQ, 2010, p. H-10).  The AHRQ (2010) explains further, “Residents of micropolitan areas had worse access to care for 50% of access measures. Residents of noncore areas had worse access to care for about 40% of access measures” (p. H-11).   Rural children suffer health the aforementioned disparities; more than 30 percent of young children in the rural southern United States are poor.  Due to their developing bodies; younger children are especially vulnerable to negative health outcomes.  Childhood health problems can persist into adulthood.  McKenzie, Pinger, & Kotecki (2008) explain it is difficult for unhealthy children to learn.  Early childhood poverty is correlated with fewer years of completed matriculation...

Words: 2445 - Pages: 10

Free Essay

Psychology

...PSYCOLOGY EXAM Differentiate between Freud and Erikson's approach to psychoanalytic theory in this lesson. You will examine and compare developmental stages side by side and have the opportunity to test your knowledge with a quiz at the end. Example for Comparison Mary has a 3-month-old daughter. Mary bottle feeds her child and follows a strict schedule for feeding times. The child is not allowed to have a pacifier. Mary is an affectionate parent, and all of her child's needs are met. How could the actions that occur in the child's life now affect her later development? Similarities of Freud and Erikson Sigmund Freud's psychosexual theory and Erik Erikson's psychosocial theory are two important psychoanalytic theories on human development that could be used to explain the developmental effects of this scenario. In this lesson, we will examine what these two theories have in common and how they differ. Erikson's theory followed Freud's and was based on many of Freud's ideas. Because of this, the two theories have similarities. Both theorists recognize the importance of the unconscious on development. They also both separate development into stages of a person's life and utilize similar age divisions for these developmental stages. Differences of Freud and Erikson However, there are several differences that exist between the names of the stages and the developmental issues that are encountered during each. Part of the reason for this is that each psychologist has his own unique...

Words: 2897 - Pages: 12

Free Essay

Sexually Transmitted Diseases

...Sexually transmitted diseases For my research paper I decided to write on sexually transmitted diseases because it seems that we are hearing more and more about them. They are becoming more of a problem in the United States and it is fair to say that they are not going to go a way for a long time, if even at all. Sexually transmitted diseases can change a person’s life and even kill them. If a person wants to be sexually active they must understand the risks that are involved and how they can protect themselves. The first sexually transmitted disease that I want to talk about is chlamydia. Chlamydia, first of all, is a bacteria. The chance of being infected with chlamydia is very high among teenagers and young adults due to sexual activity. Chlamydia is transmitted through sexual contact, mainly vaginal or anal. It also has to be transmitted by someone that has been infected. Many people that have chlamydia do not even know they are infected, because they do not show any symptoms. To be exact, according to Engender Health, “there are about 75% of infected women and half of infected men have no symptoms of chlamydia.” The risk of a person becoming infected is very high if the person is engaging in unsafe sex, having sex with more than one partner, and being in a sexual relationship with someone who has multiple sex partners. To protect yourself and reduce your risk one should use condoms during sex, and limit your number of sex partners. (Engender Health) The symptoms...

Words: 1866 - Pages: 8

Free Essay

Adassas

...One can learn a great deal about women’s history from studying women in a particular situation. Discussion of prostitution, a topic that has long excited widespread interest, incorporates ethnographic, historical, philosophical, medical, religious, and sociological elements and can tell much about different societies’ attitudes toward women. Popular attitudes toward prostitution also provide information on a particular society’s beliefs about race, class, gender, and age, as well as eugenics and hygiene, not to mention gender difference in marriage. The variety of sources described here can be employed as a model for students interested in other women’s history topics. Courtesans, or upper-class prostitutes, are among the women often mentioned in traditional histories, from the hetaerae of Ancient Greece, through the Byzantine Empress Theodora, to Diane de Poitiers, the 16th-century mistress of Henri II, King of France. Courtesans have been the subject of Japanese woodcuts, “Pictures of the Floating World,” dating from the Edo Period , and of European portrait painters. Some, like the Madame de Pompadour and Madame du Barry, the mistresses of French King Louis XV during the mid-18th century, came to wield significant power. These women, however, represent only a small percentage of prostitutes, many of whom lived—and still live—in poverty. Both men and women have been employed as sexual laborers throughout history. When Western governments began attempting to regulate prostitution...

Words: 1054 - Pages: 5

Premium Essay

Identify and Describe Five Factors Surrounding Stimulant Use That Heighten the Risk for the Contraction of the Hiv Virus in the Context of a Psychological Theory of Your Choice?

...they are not aware of a proper guide to cleanliness when administering the drug using needles. Because they are financially unstable, whatever means are used to get that "high" ,they will use it . Possible contraction can come from unsterilized needles, open sores or wounds and even sexual intercourse. According to Erikson, both social and environmental forces we are exposed to influences our development stages. In this particular instance ,because of the poverty faced by this family, they have learnt to accept it in a negative way. Since the poverty issues remains unresolved ,having to deal with another possible crisis (HIV contraction) will prove to be more difficult . Some students may use "club drugs" like Ecstasy to release after exams. The pressure they face during those times can be enormous and one way of releasing that pressure may be through that avenue. Since these drugs impairs your judgment about sexual activity and other drugs, they can find themselves hooked up with someone who may be a HIV potential candidate. Erickson argues that adolescents go through a period of development and during that development they will aspire to identity achievement (strong ego, stable, able to cope with changing environment). However, because the drug use have become a consistent part of the student life, it has blurred their judgments causing them to feel confused and act inappropriately . Another factors surrounding stimulant use that heighten the risk for the contraction...

Words: 852 - Pages: 4

Free Essay

Diabetes and Oral Healht Cure

...DIABETES AND ORAL HEALHT CURE Diabetes is a disease that is still incurable but that can be controlled by taking many precautions. If you have diabetes, you must look out for what you eat, exercise regularly, take your medication diligently, and also pay special attention to your oral health. Among the oral problems that diabetes can trigger, dry mouth (xerostomia) and infections are the main ones. Xerostomia, or lack of saliva in the mouth, can have serious consequences, including tooth decay (cavities), the appearance of ulcers and fungal infections, and the difficulty of wearing dentures and partials. Oral infections that diabetics encounter are the cause of periodontal disease. Gum disease, or periodontal disease, affects the gums and the bone that support teeth. Gum disease is more difficult to cure when you have diabetes. It is therefore important to maintain your gums healthy and have them checked regularly. Furthermore, if you are diabetic and undergo oral surgery, healing will be more slow than usual. So whether you have a tooth extraction, wisdom teeth removal, or gum surgery, you must expect longer healing time. Dentists recommend people with diabetes to have meticulous oral hygiene, by brushing and flossing preferably after every meal. It is also cautious to see your dentist for regular checkups, every three months if possible, for a tooth and gum exam, and a tartar scaling. At each visit, your medical history must be updated by informing any change of your diabetes...

Words: 339 - Pages: 2

Premium Essay

Mahek

...Chapter 1 SIGMUND FREUD AN INTRODUCTION Sigmund Freud, pioneer of Psychoanalysis, was born on 6th May 1856 in Freiberg to a middle class family. He was born as the eldest child to his father’s second wife. When Freud was four years old, his family shifted and settled in Vienna. Although Freud’s ambition from childhood was a career in law, he decided to enter the field of medicine. In 1873, at the age of seventeen, Freud enrolled in the university as a medical student. During his days in the university, he did his research on the Central Nervous System under the guidance of German physician `Ernst Wilhelm Von Brucke’. Freud received his medical degree in 1881and later in 1883 he began to work in Vienna General Hospital. Freud spent three years working in various departments of the hospital and in 1885 he left his post at the hospital to join the University of Vienna as a lecturer in Neuropathology. Following his appointment as a lecturer, he got the opportunity to work under French neurologist Jean Charcot at Salpetriere, the famous Paris hospital for nervous diseases. So far Freud’s work had been entirely concentrated on physical sciences but Charcot’s work, at that time, concentrated more on hysteria and hypnotism. Freud’s studies under Charcot, which centered largely on hysteria, influenced him greatly in channelising his interests to psychopathology. In 1886, Freud established his private practice in Vienna specializing in nervous diseases...

Words: 155674 - Pages: 623

Free Essay

Developmental Psychology

...Developmental Psychology There are three main theories of development that I shall discuss in this assignment, 'Cognitive', the main theorist being, 'Piaget', (1896 - 1980), The, 'Psychosocial Theory', 'Erikson', (1902 - 1994), and, The 'Psychosexual', of, 'Freud', (1856 - 1939). Cognitive Psychology draws the comparison between the human mind and a computer, suggesting that we like the computer process the information we acquire from around us and then react accordingly. Hearnshaw, (1987), claims that Cognitive Psychology is both one of the oldest and also one of the newest parts of Psychology, cited in ?T. Malim?, (1994). Information is collected through our senses i.e. vision, touch, smell etc and then processed through our brain. Cognitive Psychologists largely seek explanations of Cognitive development, memory, attention, artificial intelligence, perception and social cognition. The methods used are usually Laboratory experiments under controlled circumstances i.e. memory tests, and, Case studies. Piaget, (J), (1896-1980), carried out case studies on his own children to study the stages of cognitive development. Piaget concluded that the child was an organism which adapts to the environment, he also studied with the opinion that all children went through the same set stages of development and that there were no individual differences. Piagets? Stages of Development: - The Sensorimotor stage, (0-2): - Early in the sensorimotor stage the child is entirely egocentric...

Words: 3830 - Pages: 16