CSC 100 Practice Test Questions and Answers

CSC 100 Practice Test Questions and Answers A hostname such as "" must A. belong to some unique top level domain B. be translated to a unique IP address C. be used in a URL (eg. in a browser's address bar) instead of its IP address D. refer to a unique postal address in the US E. Be bought publicly by auction A Which of the following controls the internet hence can shut it down? A. the us military B. the top level domains C. the united nations headquarter D. the US president E. nobody E Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Which of the following statements is not true about the internet? A. it is an IP data packet network B. It is controlled by a single government C. it is the foundation of the WWW D. it uses DNS to lookup the IP address of every hostname E. it cannot be shut down completely B If you receive an HTML email from " " asking for an update of your personal information, you can protect yourself from "phishing" scam by: A. clicking the supplied "validated update" link B. looking for any misspellings in the email message C. examining the authenticity of the logo D. updating your personal user account directly by visiting the "" website in your browser without clicking the email E. calling by phone to confirm the validity of the email D the internet was born out of a. a request by sir tim berners - lee's to construct the world wide web b. connecting a few mainframe computers to serve millions of users world-wide. c. the desire of allowing the scientists at the european organization for nuclear research to share their data accross the globe d. a project called ARPANET funded by the us department of advanced research project agency D TCP/IP was developed initially for A. mobile data network B. ARPANET C. world wide web D. PSTN B if you login to a secured server (eg. Apple Google) with a password and in addition it asks you for a code that it sends to your phone. This is known as: A. secured remote login B. two way logins C. two-factor authentication D. remote access C To upload or publish files securely to "" we use A. HTTPS B. HTTP C. FTP D. SFTP D A popular website such as may have multiple IP addresses associated with the same domain name. That is looking up "" may return multiple IP addresses. Why? A. prevent attacks to know which machine is the "real" B. prevent users to steal each other's personal information C. when one machine is down, it can use another IP address i.e. uses one at a time D. serve geographically distributed user groups across the world i.e. uses whichever one is faster for the user E. provide different services using different IP addresses D Every IP packet must contain sender's and reciever's A. names B. postal addresses C. phone numbers D. IP addresses E. hostnames D Which of the following must be present in an IP packet? A. sender's hostname B. sender's IP address C. sender's domain name D. receiver's domain name E. all of the above B What is the port number for http? A. 11 B. 20 C. 43 D. 80 E.110 D You can call one friend if you know her phone number. You can chat online with your friend if you know her machine's IP address. How do you discover you friend's IP address if she is moving between school and home? A. You lookup her IP address from a DNS B. You store all her IP addresses on your computer e.g. like in personal phone book C. you ask the ISP of your friend's network operator about her IP address D. You dynamically assign an arbitrary IP address for her to use E. You were told by the server on which you both use e.g. skype MSN E An IP address is like an international phone number. For example, the four-part number such as specifies A. the country where the IP address belongs B. a globally unique network address C. the top level domain location D. the type of business that the machine operates E. the city where the IP address is used B Which of the following is not a part of the DNS? A. port numbers B. hostnames C. top level domains(TLD) D. IP addresses A Relate the concepts in DNS to PSTN A. International phone numbers B. Country code (eg. +1, +86) C. Area (or city) codes 1. ccTLD __ 2. Domain names __ 3. Hostnames __ BCA The Domain Name System is created to A. provide a centralized "yellow page" like service on the internet B. translate IP addresses into meaningful names C. divide the internet into geographical regions D. look up the IP addresses of hostnames D Which of the following is not a standard HTML tag? A. <audio> </audio> B. <video></video> C. <h1></h1> D. <mp3></mp3> E. <head> </head> D When you are uploading your assignment 1, including your html file and images to , which protocol is your client program, ie Fugu or WinSCP, used by default? A. HTTP protocol B. secure HTTP protocol C. FTP protocol D. secure FTP protocol E. secure HTTP an FTP protocols D but should be c What does Javascript do inside an HTML page? A. presenting a consistent webpage layout B. processing HTML tags C. creating a dynamic webpage with scrolling images D. handling the HTTP protocol between a browser and a web server E. downloading images from the web server C identify the HTML tags (1, 2, 3...) to what it means (A,B,C) A. embedded an image B. display a section header C. a list D. Javascript E. the main contents 1. <body></body> 2. <h1></h1> 3. <script></script> 4. <ul></ul> 5. <img src="..."> EBDCA When your browser is requesting a web page (eg. your personal website on ""), it recieves A. the HTML text file first and then requesting any missing images or videos one by one B. the HTML text file,images and videos all at once C. the images and videos first, and then the HTML text file D. the completely rendered web oage from the server at once. E. the HTML tags first, then the headings, the body text, the image, and finally the video A