Computer Internet Questions and Answers

Q: If and email is received by an unknown person then

Correct answer: It should be deleted without opening itAn unexpected message from an unknown sender may carry malware in its attachment or a link to a fraudulent site, and replying at all confirms that the address is live. Deleting it unopened is the only response that gives the sender nothing.

Q: IP address in computing stands for

Correct answer: Internet protocolIP stands for Internet Protocol, and an IP address is the number that identifies a host within it.

Q: A combination of hardware and software that allows communication and electronic transfer of information between computers is a

Correct answer: networkA network is the combination of hardware - cables, adapters, switches - and software - protocols and drivers - that allows computers to exchange information. A server is one machine on it.

Q: Which one of the following statement is correct for the term URL?

Correct answer: It is the address of page on World Wide WebA URL - Uniform Resource Locator - identifies where a resource is and how to fetch it: the scheme, the host and the path.

Q: Which protocol is used to send email from a client to a mail server?

Correct answer: SMTPSMTP, the Simple Mail Transfer Protocol, is used to send mail - from a client to its server, and from server to server across the internet. The retrieval protocols are different, and the pair is worth distinguishing. POP3 downloads messages to one device and by default removes them from the server, which suits a single machine. IMAP leaves messages on the server and synchronises state - read, filed, deleted - across every device, which is why it is the standard for anyone reading mail on both a phone and a computer. The mnemonic is that SMTP sends and the others fetch. SMTP was designed without authentication, which is the root of the spam problem; the modern remedies are authenticated submission on port 587 and the sender-verification schemes SPF, DKIM and DMARC. FTP transfers files and has nothing to do with mail.

Q: The tem electric meeting is known as

Correct answer: Tele-conferencingTeleconferencing is a meeting held between people in different places, connected by voice or video - an electronic meeting. Tele-shopping and tele-banking are transactions rather than meetings.

171.

What is the purpose of an IP address ending in .0.1, such as 192.168.0.1, on a home network?

A.It is usually the address of the router acting as the gateway
B.It is always the address of the first computer
C.It identifies the internet service provider
D.It is a reserved broadcast address

Answer: B

Correct answer: It is usually the address of the router acting as the gateway

On a home network the address ending .1 is conventionally assigned to the router, which acts as the default gateway - the device that traffic destined for anywhere outside the local network is sent to. It is also the address typed into a browser to reach the router’s configuration page. The convention is not a rule; nothing forbids the router taking a different address, and some manufacturers use 192.168.1.254. The 192.168 range is one of the private address blocks reserved for local networks, along with 10.x.x.x and 172.16 to 172.31. These addresses are not routable on the public internet and are reused in millions of homes, which works because the router performs NAT, translating them to its single public address on the way out. The broadcast address is the last in a subnet, not the first, and the network address itself ends in .0.

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172.

If and email is received by an unknown person then

A.One should open it and respond asking their personal information
B.One should open it and respond saying you don’t know them
C.It should be deleted without opening it
D.It should be forwarded to police

Answer: C

Correct answer: It should be deleted without opening it

An unexpected message from an unknown sender may carry malware in its attachment or a link to a fraudulent site, and replying at all confirms that the address is live. Deleting it unopened is the only response that gives the sender nothing.

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173.

IP address in computing stands for

A.Internet provider
B.International pin
C.Invalid pin
D.Internet protocol

Answer: D

Correct answer: Internet protocol

IP stands for Internet Protocol, and an IP address is the number that identifies a host within it.

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174.

A combination of hardware and software that allows communication and electronic transfer of information between computers is a

A.backup system
B.network
C.server
D.peripheral

Answer: B

Correct answer: network

A network is the combination of hardware - cables, adapters, switches - and software - protocols and drivers - that allows computers to exchange information. A server is one machine on it.

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175.

What is the function of modem?

A.Encryption and decryption
B.Converts data to voice
C.Converts analog signals to digitals and vice-versa
D.Serve as a hardware anti-virus

Answer: C

Correct answer: Converts analog signals to digitals and vice-versa

A modem modulates the computer's digital data onto an analogue carrier for transmission and demodulates it back at the other end, which is where its name comes from.

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176.

What is the main advantage of using a VPN?

A.It encrypts traffic and hides the user’s IP address from the sites visited
B.It increases the speed of the internet connection
C.It removes advertisements from web pages
D.It backs up files automatically

Answer: A

Correct answer: It encrypts traffic and hides the user’s IP address from the sites visited

A VPN, or Virtual Private Network, creates an encrypted tunnel between the user’s device and a server operated by the VPN provider. Traffic emerges from that server, so sites see the server’s IP address rather than the user’s, and anyone observing the local network sees only encrypted traffic to a single destination. Its two established uses are remote access - letting an employee reach an office network as though present - and protecting traffic on untrusted networks such as public Wi-Fi. It generally makes a connection slower rather than faster, since traffic travels further and must be encrypted and decrypted; the second option inverts this. Its privacy protection is also limited and worth stating plainly: it moves trust from the internet provider to the VPN provider, who can see the same traffic. It does not make a user anonymous, since cookies and logins identify them regardless of address.

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177.

Which one of the following statement is correct for the term URL?

A.It is a type of programming object
B.It is a computer software program
C.It is the address of page on World Wide Web
D.It is an acronym for unlimited resource for learning

Answer: C

Correct answer: It is the address of page on World Wide Web

A URL - Uniform Resource Locator - identifies where a resource is and how to fetch it: the scheme, the host and the path.

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178.

Which protocol is used to send email from a client to a mail server?

A.SMTP
B.POP3
C.IMAP
D.FTP

Answer: D

Correct answer: SMTP

SMTP, the Simple Mail Transfer Protocol, is used to send mail - from a client to its server, and from server to server across the internet. The retrieval protocols are different, and the pair is worth distinguishing. POP3 downloads messages to one device and by default removes them from the server, which suits a single machine. IMAP leaves messages on the server and synchronises state - read, filed, deleted - across every device, which is why it is the standard for anyone reading mail on both a phone and a computer. The mnemonic is that SMTP sends and the others fetch. SMTP was designed without authentication, which is the root of the spam problem; the modern remedies are authenticated submission on port 587 and the sender-verification schemes SPF, DKIM and DMARC. FTP transfers files and has nothing to do with mail.

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179.

Why headers and footers used in MS -Word

A.To enhance the overall appearance of the document
B.To mark the starting of a page
C.To make large document more readable
D.To allow page headers and footers to appear on document when it is printed

Answer: D

Correct answer: To allow page headers and footers to appear on document when it is printed

A header or footer is a page feature: what is placed there repeats on every page and is printed with it. That is what distinguishes it from ordinary text typed at the top of the first page.

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180.

The tem electric meeting is known as

A.Tele-shopping
B.Tele-officing
C.Tele-conferencing
D.Tele-banking

Answer: C

Correct answer: Tele-conferencing

Teleconferencing is a meeting held between people in different places, connected by voice or video - an electronic meeting. Tele-shopping and tele-banking are transactions rather than meetings.

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