McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) , Electrical Engineering , Bachelor of Science in Computer Science TY (BSc CS) , Bachelor of Science in Information Technology FY (BSc IT) , Bachelor of Science in Information Technology SY (BSc IT) .
| 901. |
In Ethernet CSMA/CD, the special bit sequence transmitted by media access management to handle collision is called |
| A. | Preamble |
| B. | Post amble |
| C. | Jam |
| D. | None of the above |
| Answer» C. Jam | |
| 902. |
What will be the efficiency of a Stop and Wait protocol, if the transmission time for a frame is 20ns and the propagation time is 30ns? |
| A. | 20% |
| B. | 25% |
| C. | 40% |
| D. | 66% |
| Answer» B. 25% | |
| 903. |
The physical layer translates logical communication requestsfrom the into hardware specific operations. |
| A. | Data link layer |
| B. | Network layer |
| C. | Transport layer |
| D. | Application layer |
| Answer» A. Data link layer | |
| 904. |
A single channel is shared by multiple signals by |
| A. | Analog modulation |
| B. | Digital modulation |
| C. | Multiplexing |
| D. | Phase modulation |
| Answer» C. Multiplexing | |
| 905. |
Wireless transmission of signals can be done via |
| A. | Radio waves |
| B. | Microwaves |
| C. | Infrared |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 906. |
ICMP is primarily used for |
| A. | Error and diagnostic functions |
| B. | Addressing |
| C. | Forwarding |
| D. | Routing |
| Answer» A. Error and diagnostic functions | |
| 907. |
Which of the following is a transport layer protocol? |
| A. | Stream control transmission protocol |
| B. | Internet control message protocol |
| C. | Neighbour discovery protocol |
| D. | Dynamic host configuration protocol |
| Answer» A. Stream control transmission protocol | |
| 908. |
is the multiplexing technique that shifts each signal to a different carrierfrequency. |
| A. | FDM |
| B. | TDM |
| C. | Both FDM & TDM |
| D. | PDM |
| Answer» A. FDM | |
| 909. |
If link transmits 4000frames per second, and each slot has 8 bits, the transmission rate of circuit this TDM is |
| A. | 32kbps |
| B. | 500bps |
| C. | 500kbps |
| D. | 32bps |
| Answer» A. 32kbps | |
| 910. |
If there are n signal sources of same data rate, then the TDMlink has slots. |
| A. | N |
| B. | n/2 |
| C. | n*2 |
| D. | 2n |
| Answer» A. N | |
| 911. |
The state when dedicated signals are idle are called |
| A. | Death period |
| B. | Poison period |
| C. | Silent period |
| D. | Stop period |
| Answer» C. Silent period | |
| 912. |
In TDM, slots are further divided into |
| A. | Seconds |
| B. | Frames |
| C. | Packets |
| D. | Bits |
| Answer» B. Frames | |
| 913. |
In TDM, the transmission rate of a multiplexed path is always the sum of the transmission rates of the signal sources. |
| A. | Greater than |
| B. | Lesser than |
| C. | Equal to |
| D. | Equal to or greater than |
| Answer» A. Greater than | |
| 914. |
The time required to examine the packet’s header and determine where to direct the packetis part of |
| A. | Processing delay |
| B. | Queuing delay |
| C. | Transmission delay |
| D. | Propagation delay |
| Answer» A. Processing delay | |
| 915. |
Transmission delay does not depend on |
| A. | Packet length |
| B. | Distance between the routers |
| C. | Transmission rate |
| D. | Bandwidth of medium |
| Answer» B. Distance between the routers | |
| 916. |
Propagation delay depends on |
| A. | Packet length |
| B. | Transmission rate |
| C. | Distance between the routers |
| D. | Speed of the CPU |
| Answer» C. Distance between the routers | |
| 917. |
Which of the following delay is faced by the packet in travelling from one end system toanother? |
| A. | Propagation delay |
| B. | Queuing delay |
| C. | Transmission delay |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 918. |
A network router joins two _________ together? |
| A. | Computers |
| B. | Switches |
| C. | Networks |
| D. | Gateway |
| Answer» C. Networks | |
| 919. |
Message Oriented Middleware allows general purpose messages to be exchanged in a Client/Server system using message queues. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 920. |
Which of the following below is a loopback IP address? |
| A. | 127.0.0.0 |
| B. | 127.0.1.1 |
| C. | 127.0.1.0 |
| D. | 127.0.0.1 |
| Answer» D. 127.0.0.1 | |
| 921. |
Transport layer of OSI model lies between Network and ___________ layer |
| A. | Application |
| B. | Data link |
| C. | Session |
| D. | Presentation |
| Answer» C. Session | |
| 922. |
IP4 is more commonly used than IPv6? |
| A. | True |
| B. | False |
| Answer» A. True | |
| 923. |
From the options below, which suits best for MODEM? |
| A. | a device that modulates an analog carrier signal to encode digital information |
| B. | a device that modulates a digital carrier signal to encode analog information |
| C. | a device that modulates an analog carrier signal to decode digital information |
| D. | a device that modulates a digital carrier signal to decode analog information |
| Answer» A. a device that modulates an analog carrier signal to encode digital information | |
| 924. |
A network point that provides entrance into another network is called as ___________ |
| A. | Node |
| B. | Gateway |
| C. | Switch |
| D. | Router |
| Answer» B. Gateway | |
| 925. |
UDP is an unreliable protocol. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 926. |
A stream socket provides _________ communications between a client and a server |
| A. | One way |
| B. | Two way |
| Answer» B. Two way | |
| 927. |
TELNET used _________ protocol for data connection |
| A. | TCP |
| B. | UDP |
| C. | IP |
| D. | DHCP |
| Answer» A. TCP | |
| 928. |
__________ is a standard suite of protocols used for packet switching across computer networks. |
| A. | x.22 |
| B. | x.23 |
| C. | x.25 |
| D. | x.26 |
| Answer» C. x.25 | |
| 929. |
ARP works on Ethernet networks. |
| A. | False |
| B. | True |
| Answer» B. True | |
| 930. |
_______ assigns a unique number to each IP network adapter called the MAC address. |
| A. | Media Access Control |
| B. | Metro Access Control |
| C. | Metropolitan Access Control |
| D. | Both B and C above |
| Answer» A. Media Access Control | |
| 931. |
Piconets in the blue tooth a minimum of two and a maximum of ____________ Bluetooth peer devices. |
| A. | five |
| B. | eight |
| C. | nine |
| D. | four |
| Answer» B. eight | |
| 932. |
Dynamic addressing doesn’t allow many devices To share limited address space on a network |
| A. | True |
| B. | False |
| Answer» B. False | |
| 933. |
NAT stands for _____ . |
| A. | network address transformer |
| B. | network address translator |
| C. | network address translation |
| D. | Both B and C above |
| Answer» C. network address translation | |
| 934. |
Which of the following is true for secure shell tunneling? |
| A. | To set up an SSH tunnel, one configures an SSH client to forward a specified local port |
| B. | SSH tunnels provide a means to not bypass firewalls |
| C. | All SSH clients support dynamic port forwarding |
| D. | Both A and B |
| Answer» A. To set up an SSH tunnel, one configures an SSH client to forward a specified local port | |
| 935. |
When computers in a network listen and receive the signal, it is termed as active toplogy |
| A. | True |
| B. | False |
| Answer» A. True | |
| 936. |
______is added to data packet for error detection. |
| A. | checksum bit |
| B. | error bit |
| C. | parity bit |
| Answer» C. parity bit | |
| 937. |
ALL IP addresses are divided into a network address and host address |
| A. | True |
| B. | False |
| Answer» A. True | |
| 938. |
Both ping and tracert are used to find If the computer is in the network. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 939. |
What is the difference between ring and bus topology? |
| A. | In Ring, all nodes are connected with another in a loop while in the bus they are connected to a central cable |
| B. | In Ring, all nodes are connected with another loop while on a bus they are connected to a central cable |
| C. | In the bus, all nodes are connected with another in a loop while instar they are connected to a central node |
| D. | In Bus all nodes are connected with another loop while instar they are connected to a central cable |
| Answer» A. In Ring, all nodes are connected with another in a loop while in the bus they are connected to a central cable | |
| 940. |
MAC addressing works in data link layer while IP addressing works in the network layer. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 941. |
A packet whose destination is outside the local TCP/IP network segment is sent to the ___ _. |
| A. | File server |
| B. | Default gateway |
| C. | DNS server |
| D. | DHCP server |
| Answer» B. Default gateway | |
| 942. |
The physical layer is concerned with the movement of _______ over the physical medium. |
| A. | programs |
| B. | dialogs |
| C. | protocols |
| D. | Bits |
| Answer» D. Bits | |
| 943. |
In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______. |
| A. | added |
| B. | removed |
| C. | rearranged |
| D. | Modified |
| Answer» B. removed | |
| 944. |
IPv6 has _______ -bit addresses. |
| A. | 32 |
| B. | 64 |
| C. | 128 |
| D. | Variable |
| Answer» C. 128 | |
| 945. |
An IP address contains________ bits ? |
| A. | 8 |
| B. | 16 |
| C. | 32 |
| D. | 64 |
| Answer» C. 32 | |
| 946. |
Which routing protocol below is used by exterior routers between the autonomous systems? |
| A. | RIP |
| B. | IGRP |
| C. | OSPF |
| D. | BGP |
| Answer» D. BGP | |
| 947. |
What is the network ID for a computer whose IP address is 190.148.64.23? |
| A. | 190 |
| B. | 190.148 |
| C. | 190.148.64 |
| D. | None of the above |
| Answer» B. 190.148 | |
| 948. |
9 93. Determine the maximum length of the cable (in km) for transmitting data at a rate of 500 Mbps in an Ethernet LAN with frames of size 10,000 bits. Assume the signal speed in the cable to be 2,00,000 km/s. |
| A. | 1 |
| B. | 2 |
| C. | 2.5 |
| D. | 5 |
| Answer» B. 2 | |
| 949. |
The combination of an IP address and a port number is known as ___________. |
| A. | network number |
| B. | socket address |
| C. | subnet mask number |
| D. | MAC address |
| Answer» B. socket address | |
| 950. |
The Internet Control Message Protocol (ICMP) |
| A. | allows gateways to send error a control messages to other gateways or hosts |
| B. | provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another |
| C. | reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem |
| D. | All of the above |
| Answer» D. All of the above | |
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