MCQ

Networking & Web (Senior CI) MCQ - Practice Questions

Practice 205 questions across 5 topics with detailed explanations.

205Questions

5Topics

3Difficulty levels

Topics in Networking & Web (Senior CI)

1In JavaScript, what is the result of `typeof [1, 2, 3]`?

A "object"

B "number"

C "array"

D "list"

2Which pairing of IEEE 802 LAN technology and access method is correctly matched?

A 802.11 - wireless LAN MAC and PHY specifications

B 802.5 - CSMA/CA wireless access

C 802.3 - token passing on a logical bus

D 802.4 - CSMA/CD on wired Ethernet

3In an HTML form, what is the main purpose of using `<label for="user">User name</label>` together with `<input id="user" name="user">`?

A It makes the input value read-only by binding it to fixed label text.

B It converts the input field into an XML element before submission.

C It explicitly associates the visible label with the input whose `id` is `user`, improving usability and accessibility.

D It sends the input value to the server only when JavaScript is disabled.

4Which security service is primarily provided by a cryptographic hash value attached to a downloaded file?

A Automatic key exchange between users

B Confidentiality of the file contents

C Integrity checking of the file

D Network address translation for the file server

5In the OSI reference model, which pair of layer and primary function is correctly matched?

A Transport layer - conversion of bits into electrical or optical signals

B Physical layer - end-to-end process reliability using acknowledgements

C Network layer - logical addressing and routing across interconnected networks

D Presentation layer - frame delimiting and MAC addressing