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Cryptography and Network Security Unit 4

Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.

📚 Cryptography and Network Security
📖 Unit 4
🎯 MCQs
Cryptography and Network Security MCQs - Unit 4

Cryptography and Network Security MCQs - Unit 4

1

Secure Socket Layer (SSL) provides security at the

A physical layer
B data link layer
C network layer only
D transport layer
Correct Answer transport layer
2

Which of the following is NOT a part of the SSL protocol?

A Routing Protocol
B Handshake Protocol
C Record Protocol
D Alert Protocol
Correct Answer Routing Protocol
3

TLS is the successor of

A IPsec
B SSL
C PGP
D Kerberos
Correct Answer SSL
4

The default port number of HTTPS is

A 80
B 443
C 22
D 25
Correct Answer 443
5

HTTPS is

A HTTP running over UDP
B HTTP without any encryption
C HTTP running over SSL/TLS
D FTP over SSH
Correct Answer HTTP running over SSL/TLS
6

The default port number of SSH is

A 22
B 23
C 80
D 443
Correct Answer 22
7

The SSH protocol consists of the transport layer, user authentication and

A routing protocol
B connection protocols
C session cache protocol
D datagram protocol
Correct Answer connection protocols
8

In SSL, fragmentation, compression, MAC and encryption of data are done by the

A Handshake Protocol
B Alert Protocol
C Record Protocol
D Change Cipher Spec Protocol
Correct Answer Record Protocol
9

The SSL Handshake Protocol is used to

A negotiate cipher suites and establish session keys
B compress application data
C route packets
D assign IP addresses
Correct Answer negotiate cipher suites and establish session keys
10

The SSL Alert Protocol is used to

A encrypt records
B convey warnings and fatal errors
C exchange public keys
D assign session IDs
Correct Answer convey warnings and fatal errors
11

IEEE 802.11 is the standard for

A wireless LANs
B Ethernet
C Bluetooth
D token ring
Correct Answer wireless LANs
12

WEP uses which stream cipher?

A AES
B RC4
C DES
D RC5
Correct Answer RC4
13

IEEE 802.11i (WPA2) uses which encryption algorithm?

A AES (CCMP)
B RC4 only
C DES
D Caesar cipher
Correct Answer AES (CCMP)
14

IEEE 802.11i is also known as

A WEP
B WPA2 (Robust Security Network)
C SSL
D SSH
Correct Answer WPA2 (Robust Security Network)
15

TKIP stands for

A Transport Key Internet Protocol
B Temporal Key Integrity Protocol
C Trusted Key Integrity Process
D Temporary Kerberos IP
Correct Answer Temporal Key Integrity Protocol
16

An unauthorised access point set up to trick users into connecting is called a

A rogue access point (evil twin)
B honeypot router
C proxy server
D bridge
Correct Answer rogue access point (evil twin)
17

The name that identifies a wireless network is the

A MAC address
B IP address
C SSID
D port number
Correct Answer SSID
18

IEEE 802.1X provides

A wireless signal amplification
B file compression
C email encryption
D port-based network access control using EAP
Correct Answer port-based network access control using EAP
19

BYOD in mobile device security stands for

A Build Your Own Domain
B Block Your Own Data
C Bring Your Own Device
D Backup Your Online Data
Correct Answer Bring Your Own Device
20

A passive attack on web traffic is

A eavesdropping on network traffic
B modifying data in transit
C impersonating a user
D denial of service
Correct Answer eavesdropping on network traffic
21

In SSL, the integrity of records is ensured using a

A message authentication code (MAC)
B digital watermark
C firewall
D proxy
Correct Answer message authentication code (MAC)
22

SSH is mainly used for

A sending email
B browsing static pages
C streaming video
D secure remote login and file transfer
Correct Answer secure remote login and file transfer
23

SSH port forwarding is also called

A tunneling
B spooling
C hashing
D caching
Correct Answer tunneling
24

The relationship between an SSL session and SSL connections is

A one session has exactly one connection
B one connection has many sessions
C there is no relationship
D one session can have many connections
Correct Answer one session can have many connections
25

The Heartbleed bug affected the

A OpenSSL library
B WEP protocol
C Kerberos server
D PGP software
Correct Answer OpenSSL library

Fill in the Blanks

26 SSL stands for ______.
Correct Answer Secure Socket Layer
27 TLS stands for ______.
Correct Answer Transport Layer Security
28 HTTPS uses port number ______ by default.
Correct Answer 443
29 SSH uses port number ______ by default.
Correct Answer 22
30 In SSL, the ______ Protocol negotiates the cipher suite and exchanges keys.
Correct Answer Handshake
31 WEP uses the ______ stream cipher.
Correct Answer RC4
32 IEEE ______ is the standard that defines WPA2 security for wireless LANs.
Correct Answer 802.11i
33 WPA2 uses the ______ algorithm for encryption.
Correct Answer AES (in CCMP mode)
34 SSID stands for ______.
Correct Answer Service Set Identifier
35 An unauthorised access point connected to a network is called a ______ access point.
Correct Answer rogue
36 IEEE 802.1X uses the ______ protocol for authentication.
Correct Answer EAP (Extensible Authentication Protocol)
37 HTTPS uses a digital certificate to authenticate the ______.
Correct Answer web server
38 BYOD stands for ______.
Correct Answer Bring Your Own Device
39 The SSL ______ Protocol is used to signal errors and warnings.
Correct Answer Alert
40 SSH stands for ______.
Correct Answer Secure Shell
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