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 : What is the maximum size of data that the application layer can pass on to the TCP layer below? a. Any size b. 216 bytes - size of TCP header c. 216 bytes d. 1500
Last Answer : a. Any size
Description : Which among the following represents the objectives/requirements of Data Link Layer? a. Frame Synchronization b. Error & Flow Control c. Both a & b d. None of the above
Last Answer : c. Both a & b
Description : In IPv6,options are inserted between the _________and the ___________ data. A) baseheader;extensionheader B) baseheader;upper-layer data C) base header; frame header D) noneof the abov
Last Answer : baseheader;upper-layer data
Description : In IPv6, options are inserted between the _________ and the ___________ data A. base header; extension header B. base header; upper-layer data C. base header; frame header D. none of the above
Last Answer : B. base header; upper-layer data
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 IPv4 header, an HLEN value of decimal 10 means_______. A) there are 10bytes ofoptions B) there are 40bytes ofoptions C) there are 10bytes inthe header D) thereare 40 bytes in the header
Last Answer : thereare 40 bytes in the header
Description : An IP datagram of size 1000 bytes arrives at a router. The router has to forward this packet on a link whose MTU (maximum transmission unit) is 100 bytes. Assume that the size of the IP header is 20 bytes ... the IP datagram will be divided into for transmission is : a. 10 b. 50 c. 12 d. 13
Last Answer : d. 13
Description : The IPv4 header size _______ A. is 20 to 60 bytes long B. is always 20 bytes long C. is always 60 bytes long D. depends on the MTU
Last Answer : A. is 20 to 60 bytes long
Description : In IPv4 header, an HLEN value of decimal 10 means _______ A. there are 10 bytes of options B. there are 40 bytes of options C. there are 10 bytes in the header D. there are 40 bytes in the header
Last Answer : D. there are 40 bytes in the header
Description : State weather the following statement is true or false for IPV6 Addressing 1). IPV6 is a routable protocol that addresses, routes, fragments, and reassembles packets 2).IPV6 is a connectionless, unreliable datagram protocol. 3). ... C. 1. false, 2. false, 3. false D. 1.false, 2. true, 3. true
Last Answer : A. 1. True, 2. true, 3. true
Description : The maximum size of the data that the application layer can pass on to the TCP layer below is ......... (1) 216 bytes (2) 216 bytes + TCP header length (3) 216 bytes - TCP header length (4) 215 bytes
Last Answer : Answer: Marks to all
Description : Which is the main function of transport layer? A) Node to node delivery B) End to end delivery C) Synchronization d) Updating and maintaining routing tables
Last Answer : B) End to end delivery
Description : Delimiting and synchronization of data exchange is provided by __________ a. Application layer b. Session layer c. Transport layer d. Link layer
Last Answer : b. Session layer
Description : Delimiting and synchronization of data exchange is provided by __________ a) Application layer b) Session layer c) Transport layer d) Link layer
Last Answer : b) Session layer
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 : 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 : In Frame Relay, the EA field defines thenumber of bytes; it is _____ in the last byte of the address. A) 0 B) 1 C) 2 D) 3
Last Answer : 1
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 : 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 : 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 : A _______ can check the MAC addresses contained inthe frame. A) passive hub B) repeater C) bridge D) route
Last Answer : bridge
Description : State weather the following statement is true or false for Multipurpose Internet Mail Extensions 1).The general syntax for MIME header fields is not the same as that for RFC 2822. 2).MIME header field names are never ... false C. 1. false, 2. false, 3. false D. 1.false, 2. true, 3. true
Description : Which of the following is anecessary part of the IPv6 datagram? A) Base header B) Extension header C) Data packet from the upper layer D) (a) and (c)
Last Answer : Base header
Description : The network layer is concerned with __________ of data. a. bits b. frames c. packets d. bytes
Last Answer : c. packets
Description : The network layer encapsulates the data into _______of data. A. bits B. frames C. packets D. bytes
Last Answer : C. packets
Description : The network layer is concerned with __________ of data. a) bits b) frames c) packets d) bytes
Last Answer : c) packets
Description : In IPv6, the _______ field inthe baseheader and thesender IP address combineto indicate aunique path identifier for aspecific flow of data. A) flow label B) nextheader C) hoplimit D) destination IP address
Last Answer : flow label
Description : In process to process delivery, an application process is assigned a ………….., which is likely to be …………….each time that process is started A. process identifier number , different B. process identifier number, same C. source, mixed D. Source, similar
Last Answer : A. process identifier number , different
Description : An application process is assigned a process identifier number (process ID), which is likely to be _______ each time that process is started. A. Similar B. smaller C. different D. larger
Last Answer : C. different
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 400 bytes?
Description : Header of datagram in IPv4 has _________ a) 0 to 20 bytes b) 20 to 40 bytes c) 20 to 60 bytes d) 20 to 80 bytes
Last Answer : c) 20 to 60 bytes
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 Manchester anddifferential Manchester encoding, the transition at the middle of the bit is usedfor __________. A) bit transfer B) baud transfer C) synchronization D) none of the above
Last Answer : synchronization
Description : In_______encoding, the duration of the bit is divided into twohalves. Thevoltage remains at one level during thefirst half and moves to the other level in the second half. The transition at the middle of the bit ... Manchester B) differential Manchester C) both (a) and (b) D) neither (a) nor (b)
Last Answer : both (a) and (b)
Description : ______ provides synchronization without increasingthe number of bits. A) Scrambling B) Line coding C) Block coding D) None of the above
Last Answer : Scrambling
Description : _____ provides redundancy toensure synchronization and inherent errordetection. A) Block coding B) Line coding C) Scrambling D) None of the above
Last Answer : Block coding
Description : Block coding can help in _______at the receiver. A) Synchronization B) Error detection C) Attenuation D) (a) and (b)
Last Answer : (a) and (b)
Description : In T1 digital system, the frame synchronization code repeats every
Last Answer : In T1 digital system, the frame synchronization code repeats every 125 microsecond
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 : At the data link layer, Frame Relayusesa protocol that supports _____control. A) flow B) error C) either (a) or (b D) neither (a) nor (b)
Last Answer : neither (a) nor (b)
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 : The layer of OSI model can use the trailer of the frame for error detection. A) Physical B) Data link C) Transport D) Presentation
Last Answer : A) Physical
Description : The data unit in the TCP/IP layer called a ..... A) Message B) Segment C) Datagram D) Frame
Last Answer : D) Frame
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 : Which of the following term describes PDU encapsulated at Transport Layer? a. Frame b. Packet c. Data d. Segment
Last Answer : d. Segment
Description : The protocol data unit (PDU) for the application layer in the Internet stack is? a. Datagram b. Frame c. Message d. Segment
Last Answer : c. Message