Description : What type of network device allows youto share your connection to the Internet with other computers in your home? A) Ethernet card B) NIC C) Router D) Cat 5
Last Answer : Router
Description : What interface card do you need toconnect to a network? A) ISP card B) Wireless card C) Router D) NIC
Last Answer : NIC
Description : Which among the following definitions is correct: a) Address - The unique number ID assigned to one host or interface in a network b) Subnet - A portion of a network sharing a particular subnet address c) ... to the host d) Interface - A network connection e) None of These f) All of the Above
Last Answer : f) All of the Above
Description : Application layer is implemented in _______ a. End system b. NIC c. Ethernet d. Packet transport
Last Answer : a. End system
Description : The least significant 23 bits in a 48-bit Ethernet address identify a ________. A) multicast router B) host C) multicast group D) noneof the above
Last Answer : multicast group
Description : What is the difference between the Ethernet frame preamble field and the IEEE 802.3 preamble and start of frame Delimiter fields? a. 1 byte b. 1 bit c. 4 bit d. 16 bit
Last Answer : a. 1 byte
Description : Transport layer is implemented in _________ a. End system b. NIC c. Ethernet d. Signal transmission
Description : Application layer is implemented in ____________ a) End system b) NIC c) Ethernet d) Packet transport
Last Answer : a) End system
Description : Suppose that the one-way propagation delay for a 100 Mbps Ethernet having 48-bit jamming signal is 1.04 micro-seconds. The minimum frame size in bits is: a. 112 b. 160 c. 208 d. 256
Last Answer : d. 256
Description : Suppose the round trip propagation delay for a 10 Mbps Ethernet having 48-bit jamming signal is 46.4 ms. The minimum frame size is a. 94 b. 416 c. 464
Last Answer : c. 464
Description : Which of the following couldnot be an Ethernet unicast destination? A) 43:7B:6C:DE:10:00 B) 44:AA:C1:23:45:32 C) 46:56:21:1A:DE:F4 D) 48:32:21:21:4D:34
Last Answer : 43:7B:6C:DE:10:0
Description : NIC stands for: a) Short form of Nice in computer language b) Networking Internet Connection c) Network Internal Card d) Network Interface Card e) None of These
Last Answer : d) Network Interface Card
Description : In order to use cable for browsing web you will need: a) A cable modem b) Network Interface Card (NIC) c) Both of Above d) None of These
Last Answer : c) Both of Above
Description : Station A uses 32 byte packets to transmit messages to Station B using a sliding window protocol. The round trip delay between A and B is 80 milliseconds and the bottleneck bandwidth on the path between A and B ... What is the optimal window size that A should use? a. 20 b. 40 c. 160 d. 320
Last Answer : b. 40
Description : A 32 bit microprocessor has the word length equal to a. 2 byte b. 32 byte c. 4 byte d. 8 byte
Last Answer : 4 byte
Description : In Ethernet addressing, if the least significant bit of the firstbyte is 1, the address is _________. A) unicast B) multicast C) broadcast D) none of the above
Last Answer : multicast
Description : In Ethernet addressing, if the least significant bit of the firstbyte is 0, the address is _________. A) unicast B) multicast C) broadcast D) none of the above
Last Answer : unicast
Description : High-level Data Link Control (HDLC) is a _______ protocol for communication over point-to-pointand multipoint links. A) bit-oriented B) byte-oriented C) character-oriented D) none of the above
Last Answer : bit-oriented
Description : In an Ethernet local area network, which one of the following statements is TRUE ? a. A station stops to sense the channel once it starts transmitting a frame. b. The purpose ... collision is detected. d. The exponential backoff mechanism reduces the probability of collision on retransmissions
Last Answer : The exponential backoff mechanism reduces the probability of collision on retransmissions
Description : The target hardware address on an Ethernet is _______ in an ARP request. A) 0x000000000000 B) 0.0.0.0 C) variable D) class dependent
Last Answer : 0x000000000000
Description : A 4 byte IP address consists of __________ a. only network address b. only host address c. network address & host address d. network address & MAC address
Last Answer : c. network address & host address
Description : One 4 byte IP address is subdivided into __________ A. only network address B. only host address C. network address & host address D. network address & MAC address
Last Answer : C. network address & host address
Description : The _______ layer of Ethernet consistsof the LLC sublayer and the MAC sublayer. A) data link B) physical C) network D) none of the above
Last Answer : data link
Description : How many bits internet address isassigned to eachhost on a TCP/IP internet which is used in all communications withthehost? A. 16 - bits B. 32 - bits C. 48 - bits D. 64 - bits E. None of the above
Last Answer : 32 - bits
Description : In hexadecimal colon notation, a 128-bit address isdivided into _______ sections, each _____hexadecimal digits in length. A) 8: 2 B) 8: 3 C) 8: 4 D) none of the above
Last Answer : 8: 4
Description : In______ transmission, wesend1 start bit (0) at thebeginningand 1 or more stop bits (1s) at the end of each byte. A) synchronous B) asynchronous C) isochronous D) none of the above
Last Answer : asynchronous
Description : Each ________in a SONET framecancarry a digitized voice channel. A) bit B) byte C) frame D) none of the above
Last Answer : byte
Description : Four channels are multiplexed using TDM. If each channel sends 100 bytes/second and we multiplex 1 byte per channel, then the bit rate for the link is __________. a. 400 bps b. 800 bps c. 1600 bps d. 3200 bps
Last Answer : d. 3200 bps
Description : Which of the following magazines covers only the IBM PC and its compatibles? a. Byte b. PC Magazine c. Personal Computing d. Interface Age
Last Answer : PC Magazine
Description : Length of Port address in TCP/IP is A. 8 bit long B. 4 bit long C. 32 bit long D. 16 bit long
Last Answer : D. 16 bit long
Description : What is the size of an IP address? A. 64 bit B. 128 bit C. 16 bit D. 32 bit
Last Answer : D. 32 bit
Description : Length of Port address in TCP/IP is a. 8 bit long b. 4 bit long c. 32 bit long d. 16 bit long
Last Answer : d. 16 bit long
Description : The _______ layer provides a well defined service interface to the network layer, determining how the bits of the physical layer are grouped into frames A. Data Link B. Physical C. Network D. Session
Last Answer : A. Data Link
Description : In a packet switching network, if the message size is 48 bytes and each packet contains a header of 3 bytes. If 24 packets are required to transmit the message, the packet size is ................ (1) 2 bytes (2) 1 byte (3) 4 bytes (4) 5 bytes
Last Answer : (4) 5 bytes
Description : In Ethernet CSMA/CD, the special bit sequence transmitted by media access management to handle collision is called a. Preamble b. Postamble c. Jam d. None of the above
Last Answer : c. Jam
Description : In Ethernet when Manchester encoding is used, the bit rate is: a. Half the baud rate. b. Twice the baud rate. c. Same as the baud rate. d. None of the above
Last Answer : a. Half the baud rate.
Description : The minimum frame length for 10-Mbps Ethernet is _______bytes. A) 32 B) 80 C) 128 D) none of the above
Last Answer : none of the above
Description : Which of the following couldnot be an Ethernet multicast destination? A) B7:7B:6C:DE:10:00 B) 7B:AA:C1:23:45:32 C) 7C:56:21:1A:DE:F4 D) 83:32:21:21:4D:34
Last Answer : 7C:56:21:1A:DE:F4
Description : An IPv4 address consistsof _______ bits. A) 4 B) 8 C) 32 D) 64
Last Answer : 32
Description : A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits
Last Answer : Eight bits
Description : A band is always equivalent to a. a byte b. a bit c. 100 bits d. none of above
Last Answer : none of above
Description : The most common protocol for point-to-pointaccess is the Point-to-Point Protocol (PPP), which is a _________protocol. A) bit-oriented B) byte-oriented C) character-oriented D) none of the above
Last Answer : byte-oriented
Description : The computer abbreviation KB usually means– (A) Key Block (B) Kernel Boot (C) Key Byte (D) Kit Bit (E) Kilo Byte
Last Answer : Kilo Byte
Description : An ICMP message has _____ headerand a variable-size data section. A) a 16-byte B) a 32-byte C) an 8-byte D) noneof the above
Last Answer : an 8-byte
Description : In the Ethernet frame, the_______field contains error detection information. A) CRC B) preamble C) address D) none of the above
Last Answer : CRC
Description : In the Ethernet, the _______field is actually added at the physical layer and isnot (formally)part of the frame. A) CRC B) preamble C) address D) none of the above
Last Answer : preamble
Description : In Ethernet addressing, ifall the bits are 1s, the address is _________. A) unicast B) multicast C) broadcast D) none of the above
Last Answer : broadcast
Description : If an Ethernet destination address is08:07:06:05:44:33, then this is a ______ address. A) unicast B) multicast C) broadcast D) any of theabove