2025年信息技术试题及答案英语.docVIP

2025年信息技术试题及答案英语

一、单项选择题（每题2分，共20分）

1.TheprimarypurposeoftheInternetProtocol(IP)isto:

A.Establishconnectionsbetweendevices

B.Ensuredataisdeliveredsecurely

C.Assignuniqueaddressestodevicesonanetwork

D.Encryptdataduringtransmission

Answer:C

2.Whichofthefollowingisacharacteristicofapeer-to-peer(P2P)network?

A.Centralizedserverforresourcemanagement

B.Hierarchicalstructurewithmultiplelayers

C.Distributedarchitecturewithnocentralserver

D.Highdependencyonclient-servercommunication

Answer:C

3.Theprocessofconvertinganalogsignalsintodigitalsignalsisknownas:

A.Modulation

B.Demodulation

C.Sampling

D.Encoding

Answer:B

4.WhichlayeroftheOSImodelisresponsibleforprovidingend-to-endcommunicationservices?

A.Physicallayer

B.DataLinklayer

C.Networklayer

D.Transportlayer

Answer:D

5.Afirewallprimarilyprotectsanetworkby:

A.Encryptingdata

B.Blockingunauthorizedaccess

C.Optimizingdatatransmission

D.Providingdatabackup

Answer:B

6.Thetermbandwidthinnetworkingrefersto:

A.Thespeedofdatatransfer

B.Thecapacityofthenetwork

C.Thefrequencyrangeofsignals

D.Thenumberofusersconnected

Answer:B

7.Whichprotocoliscommonlyusedforsecureemailcommunication?

A.FTP

B.SMTP

C.POP3

D.IMAP

Answer:C

8.Theprocessofdividingalargenetworkintosmaller,manageablesegmentsisknownas:

A.Networksegmentation

B.Subnetting

C.Networkbridging

D.Networkpartitioning

Answer:B

9.Whichofthefollowingisatypeofwirelessnetwork?

A.Ethernet

B.TokenRing

C.Wi-Fi

D.FiberOptic

Answer:C

10.Thetermlatencyinnetworkingrefersto:

A.Thetimetakenfordatatotravelfromonepointtoanother

B.Theamountofdatatransferredpersecond

C.Thefrequencyofdatatransmission

D.Theerrorrateindatatransmission

Answer:A

二、多项选择题（每题2分，共20分）

1.Whichofthefollowingarecomponentsofacomputernetwork?

A.Routers

B.Switches

C.Firewalls

D.Ser