MCQOPTIONS
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MCQOPTIONS
This section includes 474 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
In TDM, slots are further divided into _________ |
| A. | seconds |
| B. | frames |
| C. | packets |
| D. | bits |
| Answer» C. packets | |
| 352. |
__________ allows checking if a domain is available for registration. |
| A. | domain check |
| B. | domain dossier |
| C. | domain lookup |
| D. | domain registers |
| Answer» B. domain dossier | |
| 353. |
TCP groups a number of bytes together into a packet called _______ |
| A. | packet |
| B. | buffer |
| C. | segment |
| D. | stack |
| Answer» D. stack | |
| 354. |
In classless addressing, there are no classes but addresses are still granted in ______ |
| A. | ips |
| B. | blocks |
| C. | codes |
| D. | sizes |
| Answer» C. codes | |
| 355. |
______is added to data packet for error detection. |
| A. | checksum bit |
| B. | error bit |
| C. | parity bit |
| Answer» D. | |
| 356. |
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» B. Metro Access Control | |
| 357. |
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» B. Lesser than | |
| 358. |
WiMAX MAC layer provides an interface between ___________ |
| A. | higher transport layers and physical layer |
| B. | application layer and network layer |
| C. | data link layer and network layer |
| D. | session layer and application layer |
| Answer» B. application layer and network layer | |
| 359. |
Which of the following is false with respect to the datagram networks? |
| A. | number of flows of packets are not limited |
| B. | packets may not be in order at the destination |
| C. | path is not reserved |
| D. | delay is the same for all packets in a flow |
| Answer» E. | |
| 360. |
AbsoluteTelnet is a telnet client for _______ Operating system. |
| A. | windows |
| B. | linux |
| C. | mac |
| D. | ubuntu |
| Answer» B. linux | |
| 361. |
Transport services available to applications in one or another form _________ |
| A. | reliable data transfer |
| B. | timing |
| C. | security |
| D. | all of the mentioned |
| Answer» E. | |
| 362. |
_______ can detect burst error of length less than or equal to degree of the polynomial and detects burst errors that affect odd number of bits. |
| A. | Hamming Code |
| B. | CRC |
| C. | VRC |
| D. | None of the above |
| Answer» C. VRC | |
| 363. |
A subset of a network that includes all the routers but contains no loops is called ________ |
| A. | spanning tree |
| B. | spider structure |
| C. | spider tree |
| D. | special tree |
| Answer» B. spider structure | |
| 364. |
SMTP is not used to deliver messages to ______ |
| A. | user’s terminal |
| B. | user’s mailbox |
| C. | user’s word processor |
| D. | user’s email client |
| Answer» D. user’s email client | |
| 365. |
FTP uses _________ parallel TCP connections to transfer a file. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 366. |
Which port is reserved for use of the SMTP protocol? |
| A. | 21 |
| B. | 23 |
| C. | 25 |
| D. | 53 |
| Answer» D. 53 | |
| 367. |
One of the header fields in an IP datagram is the Time to Live (TTL) field.Which of the following statements best explains the need for this field? |
| A. | It can be used to prioritize packets |
| B. | It can be used to reduce delays |
| C. | It can be used to optimize throughput |
| D. | It can be used to prevent packet looping |
| Answer» E. | |
| 368. |
If you have to send multimedia data over SMTP it has to be encoded into _______ |
| A. | binary |
| B. | signal |
| C. | ascii |
| D. | hash |
| Answer» D. hash | |
| 369. |
This is a time-sensitive service: |
| A. | File transfer |
| B. | File download |
| C. | |
| D. | Internet telephony |
| Answer» E. | |
| 370. |
With respect to physical media, STP cables stands for _________ |
| A. | shielded twisted pair cable |
| B. | spanning tree protocol cable |
| C. | static transport protocol cable |
| D. | shielded two power cable |
| Answer» B. spanning tree protocol cable | |
| 371. |
Real-time transport protocol (RTP) is mostly used in _________ |
| A. | streaming media |
| B. | video teleconference |
| C. | television services |
| D. | all of the mentioned |
| Answer» E. | |
| 372. |
When and where RARP is used intentionally or effectively? |
| A. | At the time of network booting where no space to store IP address (or diskless network) for address resolution. |
| B. | In broadcasting to get IP address of Network. |
| C. | To get the access in private network whenever it is required. |
| D. | None of the above. |
| Answer» B. In broadcasting to get IP address of Network. | |
| 373. |
Identify the incorrect statement regarding FTP. |
| A. | ftp stands for file transfer protocol |
| B. | ftp uses two parallel tcp connections |
| C. | ftp sends its control information in-band |
| D. | ftp sends exactly one file over the data connection |
| Answer» D. ftp sends exactly one file over the data connection | |
| 374. |
In a piconet, there can be up to ________ parked nodes in the network. |
| A. | 63 |
| B. | 127 |
| C. | 255 |
| D. | 511 |
| Answer» D. 511 | |
| 375. |
Which of the following network access standard is used for connectingstations to a circuit-switched network? |
| A. | X.3 |
| B. | X.21 |
| C. | X.25 |
| D. | X.75 |
| Answer» C. X.25 | |
| 376. |
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» B. n/2 | |
| 377. |
The File Transfer Protocol is built on __________ |
| A. | data centric architecture |
| B. | service oriented architecture |
| C. | client server architecture |
| D. | connection oriented architecture |
| Answer» D. connection oriented architecture | |
| 378. |
_________ is the default administrative distance of RIP. |
| A. | 0 |
| B. | 90 |
| C. | 120 |
| D. | 130 |
| Answer» D. 130 | |
| 379. |
The value of acknowledgement field in a segment defines _______ |
| A. | sequence number of the byte received previously |
| B. | total number of bytes to receive |
| C. | sequence number of the next byte to be received |
| D. | sequence of zeros and ones |
| Answer» D. sequence of zeros and ones | |
| 380. |
How many IP addresses can be assigned to hosts in a C-class network segment with a subnet mask of255.255.255.192? |
| A. | 62 |
| B. | 126 |
| C. | 192 |
| D. | 254 |
| Answer» B. 126 | |
| 381. |
What is the maximum size of data that the application layer can pass on tothe TCP layer below? |
| A. | Any size |
| B. | 2^16 bytes-size of TCP header |
| C. | 2^16 bytes |
| D. | 1500 bytes |
| Answer» B. 2^16 bytes-size of TCP header | |
| 382. |
Which of the following can be an Ethernet physical address? |
| A. | 01:02:01:2C:4B |
| B. | 07:01:02:01:2C:4B:2C |
| C. | 07:01:02:01:2C:4B |
| D. | none of the above |
| Answer» D. none of the above | |
| 383. |
If a file consisting of 50,000 characters takes 40 seconds to send, then the data rate is __________. |
| A. | 1 kbps |
| B. | 1.25 kbps |
| C. | 2 kbps |
| D. | 10 kbps |
| Answer» E. | |
| 384. |
Delay of the resource allocated during setup phase during data transfer is ________ |
| A. | constant |
| B. | increases for each packet |
| C. | same for each packet |
| D. | different for each packet |
| Answer» D. different for each packet | |
| 385. |
IPv6 does not use _________ type of address. |
| A. | broadcast |
| B. | multicast |
| C. | anycast |
| D. | unicast |
| Answer» B. multicast | |
| 386. |
A point-to-point protocol over ethernet is a network protocol for __________ |
| A. | encapsulating ppp frames inside ethernet frames |
| B. | encapsulating ehternet framse inside ppp frames |
| C. | for security of ethernet frames |
| D. | for security of ppp frames |
| Answer» B. encapsulating ehternet framse inside ppp frames | |
| 387. |
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 analoginformation |
| Answer» B. a device that modulates a digital carrier signal to encode analog information | |
| 388. |
The attacker using a network of compromised devices is known as _____________ |
| A. | internet |
| B. | botnet |
| C. | telnet |
| D. | d-net |
| Answer» C. telnet | |
| 389. |
Port number used by Network Time Protocol (NTP) with UDP is ________ |
| A. | 161 |
| B. | 123 |
| C. | 162 |
| D. | 124 |
| Answer» C. 162 | |
| 390. |
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» D. x.26 | |
| 391. |
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 |
| Answer» C. only source address | |
| 392. |
Session layer of the OSI model provides |
| A. | Data representation |
| B. | Dialog control |
| C. | Remote job execution |
| D. | Creating logical connections |
| Answer» C. Remote job execution | |
| 393. |
With an IP address of 201.142.23.12, what is your default subnetmask? |
| A. | 0.0.0.0 |
| B. | 255.0.0.0 |
| C. | 255.255.0.0 |
| D. | 255.255.255.0 |
| Answer» E. | |
| 394. |
Network addresses are a very important concept of ________ |
| A. | routing |
| B. | mask |
| C. | ip addressing |
| D. | classless addressing |
| Answer» D. classless addressing | |
| 395. |
Datagram networks mainly refers to _________ |
| A. | connection oriented networks |
| B. | connection less networks |
| C. | telephone networks |
| D. | internetwork |
| Answer» C. telephone networks | |
| 396. |
Which routing protocol below is used by exterior routers between the autonomoussystems? |
| A. | RIP |
| B. | IGRP |
| C. | OSPF |
| D. | BGP |
| Answer» E. | |
| 397. |
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» D. None of the above | |
| 398. |
Which of the following system calls results in the sending of SYNpackets? |
| A. | socket |
| B. | bind |
| C. | listen |
| D. | connect |
| Answer» E. | |
| 399. |
Which one of the following functionalities aren’t provided by TCP? |
| A. | Flow control |
| B. | Addressing |
| C. | Retransmission of packets as required |
| D. | Proper sequencing of the packets |
| Answer» C. Retransmission of packets as required | |
| 400. |
In FTP protocol, a client contacts a server using ______ as the transport protocol. |
| A. | transmission control protocol |
| B. | user datagram protocol |
| C. | datagram congestion control protocol |
| D. | stream control transmission protocol |
| Answer» B. user datagram protocol | |