Networking practice quiz

1. What is a characteristic of UDP?

• It establishes sessions with a three-way handshake.
• It uses sequence numbers to reassemble segments.
• It adds 20 bytes of overhead to application layer data.
• It provides unreliable delivery of segments.

2. Which protocol operates at the application layer of the TCP/IP model?

• IP
• TCP
• HTTP
• ICMP

3. A student is sending files from a phone to a computer across a network. Which layer of the TCP/IP model is responsible for reassembling these messages as they are received on the computer?

• application
• transport
• internet
• network access

4. At which layer of the TCP/IP model does TCP operate?

• transport
• application
• internetwork
• network access

5. What protocol header information is used at the transport layer to identify a target application?

• IP address
• sequence number
• MAC address
• port number

6. What is the advantage of using SSH over Telnet?

• SSH is easier to use.
• SSH operates faster than Telnet.
• SSH provides secure communications to access hosts.
• SSH supports authentication for a connection request.

7. Which protocol is used by web servers to serve up a web page?

• FTP
• IMAP
• HTTP
• POP

8. Which protocols is used in the process of sending and receiving emails?

• SMTP
• HTTP
• SSH
• FTP

9. Which application provides virtual terminal access to remote servers?

• Telnet
• SMTP
• DNS
• DHCP

10. What is the port number for IMAP4 ?

• 110
• 143
• 25
• 50