Q#1: What is meant by communication?
(A) Storing information
(B) Sharing of information
(C) Deleting information
(D) Encrypting information
Answer: (B) Sharing of information
Q#2: What does telecommunications refer to?
(A) Communication inside a room
(B) Communication at a distance
(C) Communication without devices
(D) Communication using paper
Answer: (B) Communication at a distance
Q#3: What is data communication?
(A) Storage of data in computers
(B) Exchange of data between two devices through transmission media
(C) Printing data from computers
(D) Deleting files from devices
Answer: (B) Exchange of data between two devices through transmission media
Q#4: Which factor ensures that data reaches the correct destination successfully?
(A) Accuracy
(B) Delivery
(C) Jitter
(D) Delay
Answer: (B) Delivery
Q#5: Sending data without errors is called:
(A) Timeliness
(B) Accuracy
(C) Jitter
(D) Delay
Answer: (B) Accuracy
Q#6: The difference in packet arrival time in a network is called:
(A) Delivery
(B) Jitter
(C) Accuracy
(D) Speed
Answer: (B) Jitter
Q#7: Which of the following is a component of a data communication system?
(A) Monitor
(B) Receiver
(C) Keyboard
(D) Scanner
Answer: (B) Receiver
Q#8: Which form of information includes sound signals?
(A) Images
(B) Audio
(C) Text
(D) Numbers
Answer: (B) Audio
Q#9: In which mode does data flow only in one direction?
(A) Full Duplex
(B) Simplex
(C) Half Duplex
(D) Multipoint
Answer: (B) Simplex
Q#10: In half duplex mode:
(A) Data flows in one direction only
(B) Data can be sent and received but not at the same time
(C) Data cannot be sent
(D) Data flows in both directions simultaneously
Answer: (B) Data can be sent and received but not at the same time
Q#11: Full duplex communication means:
(A) Data flows only one way
(B) Data flows in both directions at the same time
(C) Data flows slowly
(D) Data flows without cables
Answer: (B) Data flows in both directions at the same time
Q#12: A network is defined as:
(A) A single computer
(B) Interconnection of devices capable of communication
(C) A single printer system
(D) A computer without internet
Answer: (B) Interconnection of devices capable of communication
Q#13: In computer networking, a host is:
(A) A cable
(B) A device connected to the network
(C) A network switch
(D) A type of protocol
Answer: (B) A device connected to the network
Q#14: In a point-to-point connection:
(A) Multiple devices share one link
(B) Two devices communicate directly
(C) Devices communicate through satellites
(D) Only printers connect
Answer: (B) Two devices communicate directly
Q#15: In star topology, all devices are connected to:
(A) A ring cable
(B) A central hub
(C) A backbone cable
(D) A modem
Answer: (B) A central hub
Q#16: Bus topology uses:
(A) Multiple backbone cables
(B) A single backbone cable
(C) Only wireless signals
(D) Satellite communication
Answer: (B) A single backbone cable
Q#17: Local Area Network (LAN) usually covers:
(A) The whole world
(B) A building or campus
(C) Only one device
(D) A country
Answer: (B) A building or campus
Q#18: Wide Area Network (WAN) covers:
(A) A small office
(B) Large geographical areas like countries
(C) One room
(D) One printer
Answer: (B) Large geographical areas like countries
Q#19: A packet-switched network transmits data in:
(A) Large continuous signals
(B) Small packets
(C) Only images
(D) Only audio signals
Answer: (B) Small packets
Q#20: TCP/IP is:
(A) A computer device
(B) A protocol suite used on the Internet
(C) A type of network cable
(D) A printer protocol
Answer: (B) A protocol suite used on the Internet