1.4.5 Practice Questions
Score: 100%
Question 1: Which of the following protocols allows hosts to exchange messages to indicate problems with packet delivery? Correct Answer: ICMP
Incorrect Answer:
ARP Incorrect Answer: TCP Incorrect Answer: IP Incorrect Answer: IGMP Incorrect Answer: DHCP
EXPLANATION
The internet control message protocol (ICMP) allows hosts to exchange messages to indicate a packet's status as it travels through the network.
Question 2: Which protocol is used on the World Wide Web to transmit web pages to web browsers? Incorrect Answer:- NNTP Incorrect Answer: HTML Correct Answer: HTTP Incorrect Answer: SMTP
EXPLANATION
Web servers and browsers use or hypertext transfer protocol (HTTP) , to transmit web pages on the internet. This protocol is often confused with hypertext markup language (HTML), which is used to create web content.
Question 3: Your company has just acquired another company in the same city. You need to integrate the two email systems so that messages can be exchanged between the email servers. Currently, each network uses an email package from a different vendor. Which TCP/IP protocol will enable message exchange between systems?
ICMP Incorrect Answer: IMAP4 POP3 . Correct Answer: SMTP Incorrect Answer: FTP
EXPLANATION
The simple mail transfer protocol (SMTP) specifies how messages are exchanged between email servers. Email clients use POP3 and IMAP4 to download email messages from email servers.
FTP is a file transfer protocol. ICMP is used in ping and traceroute to communicate network information.
Question 4: You are an application developer, and you are writing a program for exchanging video files through a TCP/IP network. You need to select a transport protocol that will guarantee delivery. Which TCP/IP protocol provides this capability?
Incorrect Answer:
TFTP
Incorrect Answer: Incorrect Answer:-- Correct Answer Incorrect Answer: Incorrect Answer:
IP
RIP
TCP FTP
UDP
EXPLANATION
Write the application to use the transmission control protocol (TCP). TCP guarantees delivery through error checking and acknowledgments.
Question 5: Which of the following protocols stores email on the mail server and allows users to access messages from various client devices without having to download the emails? Incorrect Answer: NTP Correct Answer IMAP4 Incorrect Answer: SMTP Incorrect Answer: POP3
EXPLANATION
IMAP4 allows a mail server to store messages users can access from various locations using various client devices. A POP3 server requires the user to download his or her email. SMTP allows a user to send email to a server. The NTP protocol synchronizes the clocks of all computers on a network.
Question 6: Which protocol is used to securely browse a website?
Incorrect Answer:
SIP
Incorrect Answer: ARP Incorrect Answer: SSH Incorrect Answer: UDP Correct Answer: HTTPS
EXPLANATION
HTTPS is a secure form of HTTP that uses SSL to encrypt data before it is transmitted. HTTP is used by web browsers and web servers to exchange files (such as web pages) through the World Wide Web and intranets. SSH is used for secure remote management. UDP is a data transport control protocol that does not include error correction or detection mechanisms. SIP