MCQOPTIONS
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MCQOPTIONS
This section includes 728 Mcqs, each offering curated multiple-choice questions to sharpen your Technical Programming knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
Which one of the following protocol can be used for login to a shell on a remote host except SSH? |
| A. | telnet |
| B. | rlogin |
| C. | both telnet and rlogin |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 502. |
Which standard TCP port is assigned for contacting SSH servers? |
| A. | port 21 |
| B. | port 22 |
| C. | port 23 |
| D. | port 24 |
| Answer» C. port 23 | |
| 503. |
SSH uses ___________ to authenticate the remote computer. |
| A. | public-key cryptography |
| B. | private-key cryptography |
| C. | any of public-key or private-key |
| D. | none of the mentioned |
| Answer» B. private-key cryptography | |
| 504. |
SSH can be used in only |
| A. | unix-like operating systems |
| B. | windows |
| C. | both unix-like and windows systems |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 505. |
Secure shell (SSH) network protocol is used for |
| A. | secure data communication |
| B. | remote command-line login |
| C. | remote command execution |
| D. | all of the mentioned |
| Answer» E. | |
| 506. |
The domain name system is maintained by |
| A. | distributed database system |
| B. | a single server |
| C. | a single computer |
| D. | none of the mentioned |
| Answer» B. a single server | |
| 507. |
The right to use a domain name is delegated by domain name registers which are accredited by |
| A. | internet architecture board |
| B. | internet society |
| C. | internet research task force |
| D. | internet corporation for assigned names and numbers |
| Answer» E. | |
| 508. |
Wildcard domain names start with label |
| A. | @ |
| B. | * |
| C. | & |
| D. | # |
| Answer» C. & | |
| 509. |
Which one of the following allows client to update their DNS entry as their IP address change? |
| A. | dynamic DNS |
| B. | mail transfer agent |
| C. | authoritative name server |
| D. | none of the mentioned |
| Answer» B. mail transfer agent | |
| 510. |
If a server has no clue about where to find the address for a hostname then |
| A. | server asks to the root server |
| B. | server asks to its adjcent server |
| C. | request is not processed |
| D. | none of the mentioned |
| Answer» B. server asks to its adjcent server | |
| 511. |
DNS database contains |
| A. | name server records |
| B. | hostname-to-address records |
| C. | hostname aliases |
| D. | all of the mentioned |
| Answer» E. | |
| 512. |
Servers handle requests for other domains |
| A. | directly |
| B. | by contacting remote DNS server |
| C. | it is not possible |
| D. | none of the mentioned |
| Answer» C. it is not possible | |
| 513. |
A DNS client is called |
| A. | DNS updater |
| B. | DNS resolver |
| C. | DNS handler |
| D. | none of the mentioned |
| Answer» C. DNS handler | |
| 514. |
The entire hostname has a maximum of |
| A. | 255 characters |
| B. | 127 characters |
| C. | 63 characters |
| D. | 31 characters |
| Answer» B. 127 characters | |
| 515. |
SMTP is used to deliver messages to |
| A. | user’s terminal |
| B. | user’s mailbox |
| C. | both user’s terminal and mailbox |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 516. |
Which one of the following is an SMTP server configured in such a way that anyone on the internet can send e-mail through it? |
| A. | open mail relay |
| B. | wide mail reception |
| C. | open mail reception |
| D. | none of the mentioned |
| Answer» B. wide mail reception | |
| 517. |
SMTP defines |
| A. | message transport |
| B. | message encryption |
| C. | message content |
| D. | none of the mentioned |
| Answer» B. message encryption | |
| 518. |
A SMTP session may include |
| A. | zero SMTP transaction |
| B. | one SMTP transaction |
| C. | more than one SMTP transaction |
| D. | all of the mentioned |
| Answer» E. | |
| 519. |
An email client needs to know the _________ of its initial SMTP server. |
| A. | IP address |
| B. | MAC address |
| C. | Url |
| D. | None of the mentioned |
| Answer» B. MAC address | |
| 520. |
What is on-demand mail relay (ODMR)? |
| A. | protocol for SMTP security |
| B. | an SMTP extension |
| C. | protocol for web pages |
| D. | none of the mentioned |
| Answer» C. protocol for web pages | |
| 521. |
Which one of the following protocol is used to receive mail messages? |
| A. | smtp |
| B. | post office protocol |
| C. | internet message access protocol |
| D. | all of the mentioned |
| Answer» E. | |
| 522. |
SMTP uses the TCP port |
| A. | 22 |
| B. | 23 |
| C. | 24 |
| D. | 25 |
| Answer» E. | |
| 523. |
SMTP connections secured by SSL are known as |
| A. | SMTPS |
| B. | SSMTP |
| C. | SNMP |
| D. | None of the mentioned |
| Answer» B. SSMTP | |
| 524. |
Simple mail transfer protocol (SMTP) utilizes _________ as the transport layer protocol for electronic mail transfer. |
| A. | TCP |
| B. | UDP |
| C. | DCCP |
| D. | SCTP |
| Answer» B. UDP | |
| 525. |
User agent does not support this |
| A. | Composing messages |
| B. | Reading messages |
| C. | Replying messages |
| D. | All of the mentioned |
| Answer» E. | |
| 526. |
When the sender and the receiver of an email are on different systems, we need only _________ |
| A. | One MTA |
| B. | Two UAs |
| C. | Two UAs and one pair of MTAs |
| D. | Two UAs and two pairs of MTAs |
| Answer» E. | |
| 527. |
Example of user agents for e-mail |
| A. | Microsoft Outlook |
| B. | Apple Mail |
| C. | None of the above |
| D. | All of the mentioned |
| Answer» B. Apple Mail | |
| 528. |
A session may include |
| A. | Zero or more SMTP transactions |
| B. | Exactly one SMTP transactions |
| C. | Always more than one SMTP transactions |
| D. | Number of SMTP transactions cant be determined |
| Answer» B. Exactly one SMTP transactions | |
| 529. |
Typically the TCP port used by SMTP is |
| A. | 25 |
| B. | 35 |
| C. | 50 |
| D. | 15 |
| Answer» B. 35 | |
| 530. |
Internet mail places each object in |
| A. | Separate messages for each object |
| B. | One message |
| C. | Varies with number of objects |
| D. | None of the mentioned |
| Answer» C. Varies with number of objects | |
| 531. |
Choose the statement which is wrong incase of SMTP |
| A. | It requires message to be in 7bit ASCII format |
| B. | It is a pull protocol |
| C. | It transfers files from one mail server to another mail server |
| D. | None of the mentioned |
| Answer» C. It transfers files from one mail server to another mail server | |
| 532. |
The underlying Transport layer protocol used by SMTP is |
| A. | TCP |
| B. | UDP |
| C. | Either TCP or UDP |
| D. | None of the mentioned |
| Answer» B. UDP | |
| 533. |
In SMTP, the command to write recievers mail adress is written with this command |
| A. | SEND TO |
| B. | RCPT TO |
| C. | MAIL TO |
| D. | None of the mentioned |
| Answer» C. MAIL TO | |
| 534. |
Expansion of SMTP is |
| A. | Simple Mail Transfer Protocol |
| B. | Simple Message Transfer Protocol |
| C. | Simple Mail Transmission Protocol |
| D. | Simple Message Transmission Protocol |
| Answer» B. Simple Message Transfer Protocol | |
| 535. |
If you have to send multimedia data over SMTP it has to be encoded into |
| A. | Binary |
| B. | Signal |
| C. | ASCII |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 536. |
When the mail server sends mail to other mail servers it becomes ____________ |
| A. | SMTP server |
| B. | SMTP client |
| C. | Peer |
| D. | None of the mentioned |
| Answer» C. Peer | |
| 537. |
The password is sent to the server using ________ command |
| A. | PASSWD |
| B. | PASS |
| C. | PASSWORD |
| D. | None of the mentioned |
| Answer» C. PASSWORD | |
| 538. |
Mode of data transfer in FTP, where all the is left to TCP |
| A. | Stream mode |
| B. | Block mode |
| C. | Compressed mode |
| D. | None of the mentioned |
| Answer» B. Block mode | |
| 539. |
Find the FTP reply whose message is wrongly matched |
| A. | 331 – Username OK, password required |
| B. | 425 – Can’t open data connection |
| C. | 452 – Error writing file |
| D. | 452 – Can’t open data connection |
| Answer» E. | |
| 540. |
The commands, from client to server, and replies, from server to client, are sent across the control connection in ________ bit ASCII format |
| A. | 8 |
| B. | 7 |
| C. | 3 |
| D. | 5 |
| Answer» C. 3 | |
| 541. |
FTP server |
| A. | Mantains state |
| B. | Is stateless |
| C. | Has single TCP connection for a file transfer |
| D. | None of the mentioned |
| Answer» B. Is stateless | |
| 542. |
If 5 files are transfered from server A to client B in the same session. The number of TCP connection between A and B is |
| A. | 5 |
| B. | 10 |
| C. | 2 |
| D. | 6 |
| Answer» E. | |
| 543. |
Identify the incorrect statement |
| 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 | |
| 544. |
FTP uses _________ parallel TCP connections to transfer a file |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 545. |
FTP is built on _____ architecture |
| A. | Client-server |
| B. | P2P |
| C. | Both of the mentioned |
| D. | None of the mentioned |
| Answer» B. P2P | |
| 546. |
Expansion of FTP is |
| A. | Fine Transfer Protocol |
| B. | File Transfer Protocol |
| C. | First Transfer Protocol |
| D. | None of the mentioned |
| Answer» C. First Transfer Protocol | |
| 547. |
In file transfer protocol, data transfer can be done in |
| A. | stream mode |
| B. | block mode |
| C. | compressed mode |
| D. | all of the mentioned |
| Answer» E. | |
| 548. |
The file transfer protocol is built on |
| A. | data centric architecture |
| B. | service oriented architecture |
| C. | client server architecture |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 549. |
In which mode FTP, the client initiates both the control and data connections. |
| A. | active mode |
| B. | passive mode |
| C. | both active mode and passive mode |
| D. | none of the mentioned |
| Answer» C. both active mode and passive mode | |
| 550. |
In FTP protocol, client contacts 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 | |