Description : The ______ layer is responsible for the movementof a signal across a physical section. A) section B) line C) path D) photonic
Last Answer : section
Description : The ____layer is responsible for the movement ofa signal across aphysical line. A) section B) line C) path D) photonic
Description : The _______ layer corresponds to thephysical layer of the OSI model. A) section B) line C) path D) photonic
Description : A _______is the optical link connecting two neighbor devices. A) section B) line C) path D) none of the above
Last Answer : line
Description : ______ layer is responsible for sending of IP datagrams from the source network to the destination network. A. Application layer B. Transport layer C. Network layer D. Link layer
Last Answer : The correct answer is: C. Network layer The network layer is responsible for routing and forwarding IP datagrams from the source network to the destination network. It provides logical addressing ... at the network layer include IP (Internet Protocol) and ICMP (Internet Control Message Protocol).
Description : The physical layer provides __________ a. mechanical specifications of electrical connectors and cables b. electrical specification of transmission line signal level c. specification for IR over optical fiber d. all of the mentioned
Last Answer : d. all of the mentioned
Description : The physical layer provides __________ A. mechanical specifications of electrical connectors and cables B. electrical specification of transmission line signal level C. specification for IR over optical fiber D. all of the mentioned
Last Answer : D. all of the mentioned
Description : What specifications does physical layer provides __________. A. mechanical specifications of electrical connectors and cables B. electrical specification of transmission line signal level C. specification for IR over optical fiber D. all of the mentioned
Description : The physical layer provides __________ a) mechanical specifications of electrical connectors and cables b) electrical specification of transmission line signal level c) specification for IR over optical fiber d) all of the mentioned
Last Answer : d) all of the mentioned
Description : _______ inthe data link layer separates a message from one source toa destination, or from other messages going from other sources to other destinations. A) Digitizing B) Controlling C) Framing D) none of the above
Last Answer : Framing
Description : ______ uses two optical fibers and a short-wave laser source, A) 1000Base-SX B) 1000Base-LX C) 1000Base-T D) none of the above
Last Answer : 1000Base-LX
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 : RPB creates a shortest path _______ tree from thesourceto each destination. A) unicast B) multicast C) broadcast D) none of the above
Last Answer : broadcast
Description : In an optical fibre the signal is transmitted – (1) in a straight line path (2) In a curved path (3) due to total internal reflection (4) Due to refraction
Last Answer : (3) due to total internal reflection Explanation: Total internal reflection is the basic concept be-hind the optical fiber. Optical fiber employs the transmission of light down fibers of plastic ... refractive index to allow more light to be guided along the fiber through total internal refraction.
Description : In an optical fibre the signal is transmitted (1) in a straight line path (2) In a curved path (3) due to total internal reflection (4) Due to refraction
Last Answer : due to total internal reflection
Description : A ______is the end-to-end portion of the network between two STS multiplexers. A) section B) line C) path D) none of the above
Last Answer : path
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
Last Answer : unicast
Description : f an Ethernet destination address is07:01:02:03:04:05, then this is a ______ address. A) unicast B) multicast C) broadcast D) any of theabove
Last Answer : multicast
Description : When internet data leaves your campus, it normallygoes toa(n) ______ before moving towardits destination. A) Internet backbone B) Networkaccesspoint C) Base station D) Communication system
Last Answer : Networkaccesspoint
Description : Which of the following assertions is FALSE about the Internet Protocol (IP)? a. It is possible for a computer to have multiple IP addresses b. IP packets from the same source to the same ... outgoing packets; the route is determined only by the routing tables in the routers on the way
Last Answer : d. The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way
Description : The _______ address in theheader ofa packet in adatagram network normally remains thesame during the entire journeyof the packet. A) source B) destination C) local D) none of the above
Last Answer : destination
Description : A switchin a datagram network uses arouting tablethat is based on the ______address. A) source B) destination C) local D) none of the above
Description : A one-to-one communication betweenone source and one destination is classified as a _______ communication. A) unicast B) multicast C) broadcast D) none of the above
Description : In the TCP/IP protocol suite, which one of the following is NOT part of the IP header? a. Fragment Offset b. Source IP address c. Destination IP address d. Destination port number
Last Answer : d. Destination port number
Description : Suppose transmission rate of a channel is 32 kbps. If there are ‘8’ routes from source to destination and each packet p contains 8000 bits. Total end to end delay in sending packet P is _____. a. 2 sec b. 3 sec c. 4 sec d. 1 sec
Last Answer : a. 2 sec
Description : Consider a source computer(S) transmitting a file of size 106 bits to a destination computer (D)over a network of two routers (R1 and R2) and three links(L1, L2, and L3). L1connects S to R1; L2 connects R1 to ... file from S to D? a. 1005 ms b. 1010 ms c. 3000 ms d. 3003 ms Answer: Option(a)
Last Answer : a. 1005 ms
Description : In virtual circuit network each packet contains ___________ a. full source and destination address b. a short VC number c. only source address d. only destination address
Last Answer : b. a short VC number
Description : Each IP address can identify the ………... or ………... of IP packets. A. source, destination B. length, size C. source, length D. Size , destination
Last Answer : A. source, destination
Description : In virtual circuit network each packet contains ___________ A. full source and destination address B. a short VC number C. only source address D. only destination address
Last Answer : B. a short VC number
Description : The physical layer is responsible for _____ a) line coding b) channel coding c) modulation d) all of the mentioned
Description : An ______signal is the optical modulation of an STS-n (or STM-n) signal. A) OC-n B) TDM-n C) FDM-n D) none of the above
Last Answer : TDM-n
Description : The _______ is a touring problem in which each city must be visited exactly once. The aim is to find the shortest tour. a) Finding shortest path between a source and a destination b) Travelling ... c) Map coloring problem d) Depth first search traversal on a given map represented as a graph
Last Answer : b) Travelling Salesman problem
Description : A problem solving approach works well for ______________ a) 8-Puzzle problem b) 8-queen problem c) Finding a optimal path from a given source to a destination d) Mars Hover (Robot Navigation)
Last Answer : d) Mars Hover (Robot Navigation)
Description : An independent path is the one A. That is a complete path from source to destination node B. That is a path which introduces at least one new set of processing statements C. That is a path which introduces at most one new set of processing statements D. None of the above
Last Answer : B. That is a path which introduces at least one new set of processing statements
Description : Which algorithm is used to decide the path to transfer the packets from source to destination? (1) Routing (2) Pathing (3) Selecting (4) Directing
Last Answer : Routing
Description : Hard disk is coated in both side above a. Magnetic metallic oxide b. Optical metallic oxide c. Carbon layer d. All of the above
Last Answer : Magnetic metallic oxide
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 : A noise where foreign signal enters the path of the transmitted signal is called …… A. Impulse B. Inter modulation C. cross talk D. both b and c
Last Answer : C. cross talk
Description : Which of the following routing algorithms can be used for network layer design? a. shortest path algorithm b. distance vector routing c. link state routing d. all of the mentioned
Description : Noise always affects the signal in a communications systems at the ________. A. transmitter B. channel C. information source D. destination
Last Answer : B. channel
Description : Technical study which deals with production, transport and delivery of a quality signal from source to destination. A. Transmission system engineering B. Communication system engineering C. Telephony engineering D. Telegraphic engineering
Last Answer : A. Transmission system engineering
Description : _______uses two optical fibers anda long-wavelaser source. A) 1000Base-SX B) 1000Base-LX C) 1000Base-T D) none of the above
Description : Which of the following use routes with packet filtering rules to allow or deny access based on source address, destination address, or port number? 1) Application layer Firewall 2) Packet Filtering Firewall 3) Router enhanced firewall 4) IP enabled firewall
Last Answer : 2) Packet Filtering Firewall
Description : Which of the following use routes with packet filtering rules to allow or deny access based on source address, destination address, or port number? 1 Application layer Firewall 2 Packet Filtering Firewall 3 Router enhanced firewall 4 IP enabled firewall
Last Answer : 2 Packet Filtering Firewall
Description : The ______ technique expands the bandwidthof a signal by replacing each data bit with n bits. A) FDM B) DSSS C) FHSS D) TDM
Last Answer : DSSS
Description : The Multicast Open Shortest Path First (MOSPF)protocol is an extension of the OSPF protocol that uses multicast routing to create source-based trees. The protocol is basedon _______ routing. A) distancevector B) link state C) path vector D) none of the above
Last Answer : link state
Description : In the _______ treeapproach, each router needs tohave oneshortest path tree for each group. A) group-shared B) source-based C) a or b D) none of the above
Last Answer : source-based
Description : Transport layer is implemented in _________ a. End system b. NIC c. Ethernet d. Signal transmission
Last Answer : a. End system
Description : Which of the following layer protocols are responsible for user and theapplicationprogrammesupport such aspasswords, resource sharing, file transfer and network management? A. Layer 7 protocols B. Layer 6 protocols C. Layer 5 protocols D. Layer 4 protocols E. None of the above
Last Answer : Layer 7 protocols
Description : Which of the following layers of the OSI model is responsible for user interaction? a.Layer 4 b.Layer 5 c.Layer 6 d.Layer 7
Last Answer : d.Layer 7