Q1: No error detection scheme is perfect because transmission errors can affect the additional information as well as the data.
(A) True
(B) False
Answer: (A) True
Q2: —— Program sends a message to a remote computer and reports whether the computer responds.
(A) Ping
(B) Traceroute
(C) ICMP
(D) None of the given
Answer: (A) Ping
Q3: ———- was especially concerned about the lack of high powered computers.
(A) ARPA
(B) IEEE
(C) EIA
(D) None of the given
Answer: (A) ARPA
Q4: The term ——– is used to denote the definition of a packet used with a specific type of network.
(A) Packet
(B) Frame
(C) Data
(D) None of the given
Answer: (B) Frame
Q5: Computer networks are often called ————– because they use packet technology.
(A) Ethernet
(B) Switch networks
(C) Packet networks
(D) None of the given
Answer: (C) Packet networks
Q6: ————– have advantages arisen from the size and ease of computation.
(A) CRC
(B) Parity
(C) Checksums
(D) None of the given
Answer: (B) Parity
Q7: Most LANs that employ ring topology use an access mechanism known as——-
(A) CSMA/CD
(B) CSMA/CA
(C) TOKEN PASSING
(D) None of the given
Answer: (C) TOKEN PASSING
Q8: IEEE LLC/SNAP header is ——–, which is used to specify the type of data.
(A) 8 octets
(B) 8 bytes
(C) 8 bits
(D) None of the given
Answer: (A) 8 octets
Q9: Formally named __________ informally known as the twisted pair Ethernet or TP Ethernet.
(A) 10 Base 2
(B) 10 Base 5
(C) 10 Base T
(D) None of the given
Answer: (C) 10 Base T
Q10: An interface for twisted pair Ethernet must have an ____________ connector, and must generate signals according to the _____________ specification.
(A) RJ-45, 10 Base T
(B) RJ-45, 10 Base 5
(C) BNC, 10 Base 2
(D) BNC, 10 Base T
Answer: (A) RJ-45, 10 Base T
Q11: A bridge’s function is in the _________ layer(s).
(A) Physical (MAC)
(B) Data link
(C) Network
(D) Physical (MAC) and Data link
Answer: (D) Physical (MAC) and Data link
Q12: A bridge can ________
(A) Filter a frame
(B) Forward a frame
(C) Extend a LAN
(D) Do all the above
Answer: (D) Do all the above
Q13: A bridge forwards or filters a frame by comparing the information in its address table to the frame’s_____
(A) Layer 2 source address
(B) Source node’s physical address
(C) Layer 2 destination address
(D) Layer 3 destination address
Answer: (C) Layer 2 destination address
Q14: ________ computes shortest paths in a graph by using weights on edges as a measure of distance.
(A) Greedy algorithm
(B) Distance vector algorithm
(C) Dijkstra’s algorithm
(D) None of the given
Answer: (C) Dijkstra’s algorithm
Q15: ___________ is used for audio and video, since these have predefined maximum data rates.
(A) Constant Bit Rate (CBR) service
(B) Variable Bit Rate (VBR) service
(C) Available Bit Rate (ABR) service
(D) None of the given
Answer: (A) Constant Bit Rate (CBR) service
Q16: Unlike Frame Relay and ATM, SMDS offers_______ .
(A) Connectionless service paradigm
(B) Connection-oriented service paradigm
(C) Both connectionless and connection-oriented service paradigm
(D) None of the given
Answer: (A) Connectionless service paradigm
Q17: A network with throughput T and delay D has a total of ________ bit in transit at any time.
(A) T / D
(B) T × D
(C) T + D
(D) None of the given
Answer: (B) T × D
Q18: ATM is designed to work on___________.
(A) Twisted Pair
(B) Coaxial
(C) Radio Frequency
(D) Fiber
Answer: (D) Fiber
Q19: Computers attached to an Ethernet use —— in which a computer waits for the ether to be idle before transmitting a frame.
(A) CSMA/CD
(B) CSMA/CA
(C) TOKEN PASSING
(D) None of the given
Answer: (A) CSMA/CD
Q20: FDDI can transmit data at a rate of ———-
(A) 100 million bits per second
(B) 10 million bits per second
(C) 1000 million bits per second
(D) None of the given
Answer: (A) 100 million bits per second