Network Security Quiz

Question 1: The TLS record protocol performs the following operations EXCEPT:
Select one:
A. Establishing TLS session
B. Appending a TLS header to the data
C. Fragmenting application data
D. Encrypting application data

Solution: Establishing TLS session

Question 2: Which of the following is NOT a characteristic of network application?
Select one:
A. The application must be assigned a port number
B. The application needs to implement a communication protocol
C. The application must be assigned an IP address
D. The application needs to communicate with another application over the network

Solution: The application must be assigned an IP address

Question 3: HTTP cookies allows a website to do the following EXCEPT:
Select one:
A. Keep track of user's activities on the website
B. Provide content based on user's identify
C. Identify the IP address of the user's machine
D. Maintain user login session

Solution: Identify the IP address of the user's machine

Question 4: What is the use of the Message Authentication Code (MAC) in TLS?
Select one:
A. To ensure the data is not modified during transit
B. To ensure the data is compressed to a smaller size
C. To ensure the data cannot be read during transit
D. To ensure an attacker cannot spoof the IP address of the sender

Solution: To ensure the data is not modified during transit

Question 5: Which of the following application protocols send its data in clear text?
Select one:
A. HTTPS
B. SCP
C. SFTP
D. FTP

Solution: FTP

Question 6: Which of the following statements best describe the port forwarding feature of SSH?
Select one:
A. It enables secure data transmission of any network application
B. It enables a port number of an application to be transferred to another application
C. It enables the port number on a host to be transferred to another host
D. It enables the forwarding of data from one host to another

Solution: It enables secure data transmission of any network application

Question 7: Which of the following is NOT true when HTTPS is used?
Select one:
A. HTTP cookies can no longer be sniffed
B. An HTTP header line indicating the use of HTTPS will be added to the header HTTP header
C. Password transmitted using form-based authentication can no longer be sniffed
D. HTTP header is encrypted

Solution: An HTTP header line indicating the use of HTTPS will be added to the header HTTP header 

Question 8: HTTPS is the combination of which protocols?
Select one:
A. HTTP + TLS
B. HTTP + SSH
C. TLS + SSL
D. HTTP + TLS + SSH

Solution: HTTP + TLS

Question 9: Which of the following is NOT the function of a Web proxy?
Select one:
A. To enable faster Web browsing
B. To block illegal websites
C. To log browsing activities of users in an organization
D. To prevent malware from being downloaded during Web browsing 

Solution: To prevent malware from being downloaded during Web browsing

Question 10: The use of digital certificate in HTTPS ensures which of the following security properties?
Select one:
A. Authenticity of the server
B. Confidentiality of the HTTP messages
C. Integrity of the HTTP messages
D. Availability of the server

Solution: Authenticity of the server

Question 11: Which of the following command line tools can be used to invoke DNS service to convert Internet hostname to IP address? Check all that apply.
Select one or more:
A. nslookup
B. netstat
C. dig
D. ifconfig

Solution: nslookup
dig

Question 12: What are the security services provided by HTTPS? Check all that apply.
Select one or more:
A. Confidentiality
B. Availability
C. Integrity
D. Authenticity

Solution: Confidentiality
Integrity
Authenticity

Question 13: Which of the following services cause data transmission in TCP to be slightly slower than in UDP? Check all that apply.
Select one or more:
A. Process-to-process delivery
B. Error detection
C. Reliable data transfer
D. Congestion control 

Solution: Reliable data transfer
Congestion control

Question 14: In order to allow browsing of both HTTP and HTTPS websites, which of the following port number(s) need to be allowed by the firewall? Choose all that apply.
Select one or more:
A. 22
B. 21
C. 80
D. 443

Solution: 80
443

Question 15: Which of the following application-layer protocols utilize the SSH protocol? Check all that apply.
Select one or more:
A. SFTP
B. SHTTP
C. SMTP
D. SCP

Solution: SFTP
SCP