Information and Communication Technology (ICT)

Exam: Competitive Entrance Examination 2nd Cycle

Provider: HTTTC (ENSET) Bambili

Session: July 2014

Communication and Information System (Major)
1. 0
Which of the following is not a component of an information system?
  • Trained people
  • Procedure
  • Computer hardware and software
  • Building and equipment
2. 0
An information system for an organization:
  • Gathers and presents information to help decision making in the organization
  • Is only useful to the manager of the organization
  • Must be computerized
  • Has nothing to do with the day to day running of the organization
3. 0
The most widely used internet service today is:
  • Facebook
  • Twitter
  • Email
  • Google mail
4. 0
What is the main difference between data and information?
  • Data is organized facts while information is unorganized
  • Data is interpretable while information is not
  • Information is measured in bytes and data is measured in bits
  • Data is unorganized facts while information is organized
5. 0
As used in information systems, MIS means:
  • Management information system
  • Metropolitan information system
  • Managed internet service
  • Master of information science
6. 0
Why is encryption important in communication technology?
  • To protect transmitted messages from illegal access
  • To make illegally accessed message unintelligible
  • To increase transmission speed
  • To decrease transmission cost
7. 0
The basic components of a communication system do not include:
  • The message sender
  • The message receiver
  • The internet
  • The transmission medium
8. 0
Which of the following is one of the three basic encryption medium
  • Hashing
  • Coding
  • Meshing
  • Dissolution
9. 0
A DVD can contain 4.7 GB of information. How many CDs of capacity 700MB will be necessary to copy all the information on the full DVD
  • 6
  • 7
  • 6.9
  • 8
10. 0
A medium transmits data at the speed of 10.6 MB/s. How much time will be necessary to transfer a file of capacity 2.8 GB using this medium?
  • 5 minutes, 41 seconds
  • 5 minutes 48 seconds
  • 6 minutes
  • 5.9 minutes
11. 0
What is the main purpose of computer networks?
  • To connect many computers together
  • To reduce the cost of communication
  • To increase communication speed
  • To share resources and data
12. 0
The principal difference between client/server and peer to peer network architecture is:
  • Client/server network serve more customers than peer to peer network.
  • Peer to peer networks are faster than client/server networks
  • Client/server networks use a central server while peer to peer networks do not
  • Peer to peer networks are cheaper to create then client/server networks
13. 0
What are network protocols?
  • An agreement between two networks
  • Rules and conventions guiding communication between networks
  • Rules that stop illegal users from connecting to the network
  • Classification of network devices in order of strength
14. 0
The number 148 in base 2 is
  • 74
  • 1001001
  • 10010100
  • 10101010
15. 0
The American Standard Code for Information Interchange ASCII is used for:
  • Coding characters for input into computers
  • Making computers in America communicate with other countries
  • Encrypting information before transmitting on vulnerable media
  • Transmitting other languages into American English
16. 0
The deadline for switching from analog to digital TV broadcasting in Cameroon is:
  • 1st January 2015
  • 23rd September 2015
  • 17th June 2015
  • 31st December 2015
17. 0
A tangible reason for switching from analog to digital broadcasting is:
  • Digital signals cover greater distances than analog signals
  • Digital signals produce higher quality of images and sound
  • The international telecommunications union has made it compulsory for all countries
  • Analog technology is out of date and cannot be used anymore
18. 0
Computer network hardware refers to:
  • Anything hard that is used in the network
  • The hard disks of computers in the network
  • Network computers only
  • Network computers and physical components that connect them together
19. 0
A computer operating system:
  • Is mostly used to repair computer
  • Helps users carry out specific tasks
  • Controls the overall functioning of the computer
  • Is the most voluminous program in the computer
20. 0
What is the difference between internet and intranet?
  • The internet is open worldwide while the an intranet is reserved for an organization
  • Online crimes can be committed on the internet but not in an intranet
  • An intranet is a very big website on the internet
  • It is the combination of intranet that makes the internet
21. 0
Which of the following may not be a computer crime?
  • Hacking
  • Cracking
  • Shoulder surfing
  • Blackmailing
22. 0
Identify the odd element. Communication security aims at ensuring that transmitted message have:
  • Confidentiality
  • Availability to the recipient
  • Rapidity
  • Integrity
23. 0
A full duplex communication link:
  • Allows communication in only one direction at a time
  • Allows communication in two direction simultaneously
  • Allows uses its complete bandwidth whenever in use
  • Has a bandwidth twice as wide as that of a half-duplex link
24. 0
Which of the following is not true use of optic fiber in comparison to copper cable?
  • It is not flammable
  • It has greater data carrying capacity
  • It is expensive
  • It need special skills