MCQOPTIONS
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MCQOPTIONS
This section includes 479 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 401. |
Most packet switches use this principle ____________ |
| A. | stop and wait |
| B. | store and forward |
| C. | store and wait |
| D. | stop and forward |
| Answer» C. store and wait | |
| 402. |
Terrestrial radio channels are broadly classifed into _____ groups. |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 1 |
| Answer» C. 4 | |
| 403. |
UTP is commonly used in __________ |
| A. | dsl |
| B. | fttp |
| C. | http |
| D. | none of the mentioned |
| Answer» B. fttp | |
| 404. |
Firewalls are often configured to block ___________ |
| A. | udp traffic |
| B. | tcp traffic |
| C. | sensitive traffic |
| D. | best-effort traffic |
| Answer» B. tcp traffic | |
| 405. |
Sniffers can be prevented by using _______________ |
| A. | wired environment |
| B. | wifi |
| C. | ethernet lan |
| D. | switched network |
| Answer» E. | |
| 406. |
Packet sniffers involve ____________ |
| A. | active receiver |
| B. | passive receiver |
| C. | legal receiver |
| D. | partially-active receiver |
| Answer» C. legal receiver | |
| 407. |
Which of the following is a form of DoS attack? |
| A. | vulnerability attack |
| B. | bandwidth flooding |
| C. | connection flooding |
| D. | all of the mentioned |
| Answer» E. | |
| 408. |
The attacker using a network of compromised devices is known as _____________ |
| A. | internet |
| B. | botnet |
| C. | telnet |
| D. | d-net |
| Answer» C. telnet | |
| 409. |
What is the max data transfer rate for optical fiber cable? |
| A. | 10 mbps |
| B. | 100 mbps |
| C. | 1000 mbps |
| D. | 10000 mbps |
| Answer» E. | |
| 410. |
Which of the following architecture uses the CSMA/CD access method? |
| A. | arc net |
| B. | ethernet |
| C. | router |
| D. | stp server |
| Answer» C. router | |
| 411. |
What is the central device in star topology? |
| A. | stp server |
| B. | hub/switch |
| C. | pdc |
| D. | router |
| Answer» C. pdc | |
| 412. |
Which connector does the STP cable use? |
| A. | bnc |
| B. | rj-11 |
| C. | rj-45 |
| D. | rj-69 |
| Answer» D. rj-69 | |
| 413. |
What is the max data transfer rate of STP cables? |
| A. | 10 mbps |
| B. | 100 mbps |
| C. | 1000 mbps |
| D. | 10000 mbps |
| Answer» C. 1000 mbps | |
| 414. |
What is the max length of the Shielded twisted pair cable? |
| A. | 100 ft |
| B. | 200 ft |
| C. | 100 m |
| D. | 200 m |
| Answer» D. 200 m | |
| 415. |
_____________ allows LAN users to share computer programs and data. |
| A. | communication server |
| B. | print server |
| C. | file server |
| D. | network |
| Answer» D. network | |
| 416. |
Propagation delay depends on ___________ |
| A. | packet length |
| B. | transmission rate |
| C. | distance between the routers |
| D. | speed of the cpu |
| Answer» D. speed of the cpu | |
| 417. |
Transmission delay does not depend on _____________ |
| A. | packet length |
| B. | distance between the routers |
| C. | transmission rate |
| D. | bandwidth of medium |
| Answer» C. transmission rate | |
| 418. |
In TDM, slots are further divided into _________ |
| A. | seconds |
| B. | frames |
| C. | packets |
| D. | bits |
| Answer» C. packets | |
| 419. |
The total nodal delay is given by ____________ |
| A. | dnodal = dproc – dqueue + dtrans + dprop |
| B. | dnodal = dproc + dtrans – dqueue |
| C. | dnodal = dproc + dqueue + dtrans + dprop |
| D. | dnodal = dproc + dqueue – dtrans – dprop |
| Answer» D. dnodal = dproc + dqueue – dtrans – dprop | |
| 420. |
Multiplexing provides _________ |
| A. | efficiency |
| B. | privacy |
| C. | anti jamming |
| D. | both efficiency & privacy |
| Answer» E. | |
| 421. |
The state when dedicated signals are idle are called __________ |
| A. | death period |
| B. | poison period |
| C. | silent period |
| D. | stop period |
| Answer» D. stop period | |
| 422. |
Which multiplexing technique used to transmit digital signals? |
| A. | fdm |
| B. | tdm |
| C. | wdm |
| D. | fdm & wdm |
| Answer» C. wdm | |
| 423. |
The sharing of a medium and its link by two or more devices is called _________ |
| A. | fully duplexing |
| B. | multiplexing |
| C. | micropleixng |
| D. | duplexing |
| Answer» C. micropleixng | |
| 424. |
In TDM, slots are further divided into __________ |
| A. | seconds |
| B. | frames |
| C. | packets |
| D. | bits |
| Answer» C. packets | |
| 425. |
WAN stands for __________ |
| A. | world area network |
| B. | wide area network |
| C. | web area network |
| D. | web access network |
| Answer» C. web area network | |
| 426. |
_______ topology requires a multipoint connection. |
| A. | star |
| B. | mesh |
| C. | ring |
| D. | bus |
| Answer» E. | |
| 427. |
Socket-style API for windows is called ____________ |
| A. | wsock |
| B. | winsock |
| C. | wins |
| D. | sockwi |
| Answer» C. wins | |
| 428. |
User datagram protocol is called connectionless because _____________ |
| A. | all udp packets are treated independently by transport layer |
| B. | it sends data as a stream of related packets |
| C. | it is received in the same order as sent order |
| D. | it sends data very quickly |
| Answer» B. it sends data as a stream of related packets | |
| 429. |
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 |
| Answer» D. network address & mac address | |
| 430. |
Which of the following is a data link protocol? |
| A. | ethernet |
| B. | point to point protocol |
| C. | hdlc |
| D. | all of the mentioned |
| Answer» E. | |
| 431. |
Automatic repeat request error management mechanism is provided by ________ |
| A. | logical link control sublayer |
| B. | media access control sublayer |
| C. | network interface control sublayer |
| D. | application access control sublayer |
| Answer» B. media access control sublayer | |
| 432. |
CRC stands for __________ |
| A. | cyclic redundancy check |
| B. | code repeat check |
| C. | code redundancy check |
| D. | cyclic repeat check |
| Answer» B. code repeat check | |
| 433. |
Header of a frame generally contains ______________ |
| A. | synchronization bytes |
| B. | addresses |
| C. | frame identifier |
| D. | all of the mentioned |
| Answer» E. | |
| 434. |
Which of the following tasks is not done by data link layer? |
| A. | framing |
| B. | error control |
| C. | flow control |
| D. | channel coding |
| Answer» E. | |
| 435. |
Which address is used to identify a process on a host by the transport layer? |
| A. | physical address |
| B. | logical address |
| C. | port address |
| D. | specific address |
| Answer» D. specific address | |
| 436. |
A single channel is shared by multiple signals by ____________ |
| A. | analog modulation |
| B. | digital modulation |
| C. | multiplexing |
| D. | phase modulation |
| Answer» D. phase modulation | |
| 437. |
Which address is used on the internet for employing the TCP/IP protocols? |
| A. | physical address and logical address |
| B. | port address |
| C. | specific address |
| D. | all of the mentioned |
| Answer» E. | |
| 438. |
OSI stands for __________ |
| A. | open system interconnection |
| B. | operating system interface |
| C. | optical service implementation |
| D. | open service internet |
| Answer» B. operating system interface | |
| 439. |
ONT is connected to splitter using _________ |
| A. | high speed fibre cable |
| B. | hfc |
| C. | optical cable |
| D. | twisted pair cable |
| Answer» D. twisted pair cable | |
| 440. |
Home Access is provided by __________ |
| A. | dsl |
| B. | fttp |
| C. | cable |
| D. | all of the mentioned |
| Answer» E. | |
| 441. |
StarBand provides __________ |
| A. | ftth internet access |
| B. | cable access |
| C. | telephone access |
| D. | satellite access |
| Answer» E. | |
| 442. |
Which of the following statements is not applicable for cable internet access? |
| A. | it is a shared broadcast medium |
| B. | it includes hfcs |
| C. | cable modem connects home pc to ethernet port |
| D. | analog signal is converted to digital signal in dslam |
| Answer» E. | |
| 443. |
HFC contains _______ |
| A. | fibre cable |
| B. | coaxial cable |
| C. | a combination of fibre cable and coaxial cable |
| D. | twisted pair cable |
| Answer» D. twisted pair cable | |
| 444. |
Which of the following terms is not associated with DSL? |
| A. | dslam |
| B. | co |
| C. | splitter |
| D. | cmts |
| Answer» E. | |
| 445. |
The function of DSLAM is to __________ |
| A. | convert analog signals into digital signals |
| B. | convert digital signals into analog signals |
| C. | amplify digital signals |
| D. | de-amplify digital signals |
| Answer» B. convert digital signals into analog signals | |
| 446. |
DSL telcos provide which of the following services? |
| A. | wired phone access |
| B. | isp |
| C. | wired phone access and isp |
| D. | network routing and isp |
| Answer» D. network routing and isp | |
| 447. |
Which of this is not a constituent of residential telephone line? |
| A. | a high-speed downstream channel |
| B. | a medium-speed downstream channel |
| C. | a low-speed downstream channel |
| D. | an ultra-high speed downstream channel |
| Answer» D. an ultra-high speed downstream channel | |
| 448. |
Bluetooth is an example of __________ |
| A. | personal area network |
| B. | local area network |
| C. | virtual private network |
| D. | wide area network |
| Answer» B. local area network | |
| 449. |
Communication channel is shared by all the machines on the network in ________ |
| A. | broadcast network |
| B. | unicast network |
| C. | multicast network |
| D. | anycast network |
| Answer» B. unicast network | |
| 450. |
In computer network nodes are _________ |
| A. | the computer that originates the data |
| B. | the computer that routes the data |
| C. | the computer that terminates the data |
| D. | all of the mentioned |
| Answer» E. | |