Description : In Frame Relay, an address can be________ bytes. A) only 2 B) 2 to 3 C) 2 to 4 D) none of the above
Last Answer : 2 to 4
Description : In IPv4, what is needed to determine thenumber of the last byte of a fragment? A) Identification number B) Offset number C) Total length D) (b) and (c)
Last Answer : (b) and (c)
Description : The ________ rate defines thenumber of dataelements sent in1s; the______ rate is the numberof signalelements sent in 1s. A) data; signal B) signal; data C) baud; bit D) none of the above
Last Answer : data; signal
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 : Choose the Protocols working in the Data Link Control Layer of OSI model below. a. ATM (Asynchronous Transfer Mode), Frame Relay b. HDLC (High Level Data Link Control), SDLC (Synchronous Data Link Control) c. ARP (Address Resolution Protocol), IEEE802.3 d. All the above
Last Answer : d. All the above
Description : In IPv4, if the fragment offset hasa value of 100, it means that _______. A) thedatagram has notbeen fragmented B) thedatagram is 100 bytes in size C) thefirst byte of the datagram is byte100 D) the first byteof the datagram is byte800
Last Answer : the first byteof the datagram is byte800
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 : In Frame Relay, when a _____ is selected, the correspondingtable entry is recorded for all switches by the administrator A) PVC B) SVC C) either (a) or (b) D) neither (a) nor (b)
Last Answer : PVC
Description : In_______transmission, astartbit and a stopbit frame a character byte. A) asynchronous serial B) synchronous serial C) parallel D) (a) and (b)
Last Answer : asynchronous serial
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 : The maximum frame length for 10-Mbps Ethernet is ________ bytes. A) 1518 B) 1500 C) 1200 D) none of the abov
Last Answer : 1518
Description : In SONET, for each frame, the bytes are transmitted __________. A) from left to the right, top to bottom B) from right to theleft, bottom to top C) from left to the right, bottom to top D) from right to the left, top to bottom
Last Answer : from left to the right, bottom to top
Description : The minimum frame size required for a CSMA/CD based computer network running at 1 Gbps on a 200m cable with a link speed of 2 × 108m/s is a. 125 bytes b. 250 bytes c. 500 bytes d. None of these
Last Answer : b. 250 bytes
Description : How many bytes of data can be sent in 15 seconds over a serial link with baud rate of 9600 in asynchronous mode with odd parity and two stop bits in the frame? a. 10,000 bytes b. 12,000 bytes c. 15,000 bytes d. 27,000 bytes
Last Answer : b. 12,000 bytes
Description : A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1Kbps = 1000 bits/second). Size of ... is lost, the sender throughput is __________ bytes/second. a. 2500 b. 2000 c. 1500 d. 500
Last Answer : a. 2500
Description : Consider a CSMA/CD network that transmits data at a rate of 100 Mbps (108 bits per second) over a 1 km (kilometre) cable with no repeaters. If the minimum frame size required for this network is 1250 bytes, what is the signal speed (km/sec) in the cable? a. 8000 b. 10000 c. 16000 d. 20000
Last Answer : d. 20000
Description : Header of a frame generally contains a. synchronization bytes b. addresses c. frame identifier d. all of the mentioned
Last Answer : d. all of the mentioned
Description : Header of a Layer two frame usually contain ______________ A. synchronization bytes B. addresses C. frame identifier D. all of the mentioned
Last Answer : D. all of the mentioned
Description : Find thenumber of addresses in ablock of classless addresses if one of theaddresses is 12.2.2.7/30. A) 2 B) 4 C) 8 D) none of the above
Last Answer : 4
Description : Find thenumber of addresses in ablock of classless addresses if one of theaddresses is 12.2.2.7/24. A) 32 B) 64 C) 256 D) none of the above
Last Answer : 256
Description : In IEEE 802.11, when a frame isgoingfrom one station in a BSS toanother without passing through thedistribution system, the address flag is _____ A) 00 B) 01 C) 10 D) 11
Last Answer : 00
Description : 8096 write-protected mode, no code can write to memory address between __. a) 2020 to 3FFFH b) 8000 to FFFFH c) 2000 to 3FFFH d) 2020 to 202FH 17. If the __ pin is ___ , then we have the option ... b) EA, low, internal, external c) EA, high, external, internal d) EA, low, external, internal
Last Answer : c) EA, high, external, internal
Description : A name or number used to identify a storage location devices? a. A byte b. A record c. An address d. All of above
Last Answer : An address
Description : Each station on an Ethernet network has a unique _______ address imprinted onits network interface card (NIC). A) 5-byte B) 32-bit C) 48-bit D) none of the above
Last Answer : 48-b
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 : - MAC is to Ethernet what ________ is to Frame Relay. A. DLCI B. LCI C. PVC D. None of the above
Last Answer : DLCI
Description : ______ eliminates the varying delay times associated withdifferent-size packets. A) X.25 B) Frame Relay C) ATM D) all of theabove
Last Answer : ATM
Description : ______ is the cell relay protocol designed by the corresponding Forum and adopted by the ITU-T. A) X.25 B) Frame Relay C) ATM D) none of the above
Description : Frame Relay networks offer an optioncalled ______________that sends voice through the network. A) VOFR B) FRAD C) MUX D) none of the above
Last Answer : VOFR
Description : To handleframesarrivingfrom other protocols, Frame Relay uses adevice calleda _________. A) VOFR B) FRAD C) MUX D) none of the above
Last Answer : FRAD
Description : Frame Relay has_______. A) only the physical layer B) only thedata link C) the physical and data link layers D) the physical, data link, andnetwork layers
Last Answer : the physical and data link layers
Description : In Frame Relay, when. ______ is selected, it requires establishing andterminatingphases A) a PVC B) an SVC C) either (a) or (b) D) neither (a) nor (b)
Last Answer : an SVC
Description : VCIs in Frame Relay arecalled ______. A) PVC B) SVC C) DLCIs D) none of the above
Last Answer : DLCIs
Description : Frame Relay provides ________. A) PVCs B) SVCs C) either (a) or (b) D) neither (a) nor (b)
Last Answer : Frame Relay
Description : ________ is a virtual-circuit wide-area network that was designed in response to demands fora new type of WAN in thelate1980s and early 1990s. A) X.25 B) Frame Relay C) ATM D) none of the above
Description : Which protocols adopted the standards of HDLC (High Level Link Control) protocol? a. X.25 protocol as LAPB (Link Access Procedure Balanced, V.42 protocol as LAPM (Link Access Procedure for ... Services Digital Network) protocol as LAPD (Link Access Procedure on D channel) d. All the above
Description : In an IPv4 datagram, the M bit is 0, the value of HLEN is 10, the value of total length is 400 and the fragment offset value is 300. The position of the datagram, the sequence numbers of the ... 2789 b. First fragment, 2400 and 2759 c. Last fragment, 2400 and 2759 d. Middle fragment, 300 and 689
Last Answer : c. Last fragment, 2400 and 2759
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 : A UDP datagram of _____ bytes is acceptable to all implementations A. 516 B. 1024 C. 256 D. 512
Last Answer : A. 516
Description : In IPv6, the ________ prefix defines the purpose of the address. A) type B) purpose C) both a and b D) none of the above
Last Answer : type
Description : In IPv6,____ address defines a groupof computers with addresses that have thesame prefix. A) aunicast B) a multicast C) an anycast D) none of the above
Last Answer : an anycast
Description : In IPv6,_______ address defines asingle computer. A) aunicast B) a multicast C) an anycast D) none of the above
Last Answer : aunicast
Description : In IPv6, _______ address defines a single computer A. a unicast B. a multicast C. an anycast D. none of the above
Last Answer : A. a unicast
Description : The number of characters that can be stored in given physical space is a. Word length b. Byte c. Data density d. Field
Last Answer : Data density
Description : In IPv4, what is the value of the total length field in bytes if the header is 28 bytes and the data field is 400bytes? A) 428 B) 407 C) 107 D) 427
Last Answer : 428
Description : In ATM, the _____ layer defines thetransmission medium,bit transmission,encoding, and electrical-to-optical transformation. A) physical B) ATM layer C) AAL D) none of the above
Last Answer : physical
Description : An integer takes a storage size of (a) 2 bytes (b) 1 byte -Technology
Last Answer : (a) An integer takes a storage size of 2 bytes.
Description : If an integer occupies 4 bytes and a character occupies 1 byte of memory, each element of the following structure would occupy how many bytes ? struct name { int age; char name[30]; }; A) 30 B) 32 C) 34 D) 36
Last Answer : C) 34