Question 1

In tunnel mode, IPSec protects the ______&#10;A)entire ip packet&#10;B)ip header&#10;C)ip payload&#10;D)ip trailer

Accepted Answer

In tunnel mode, IPSec encapsulates the entire IP packet, including the original IP header and payload, within a new IP packet with a new IP header, thus protecting the entire packet.

Question 2

Pretty good privacy (PGP) is used in ______&#10;A)browser security&#10;B)email security&#10;C)ftp security&#10;D)wifi security

Accepted Answer

PGP, or Pretty Good Privacy, is primarily used for securing email communication. It encrypts emails to ensure that only the intended recipient can read them, providing confidentiality and authentication.

Question 3

PGP encrypts data by using a block cipher called ______&#10;A)international data encryption algorithm&#10;B)private data encryption algorithm&#10;C)internet data encryption algorithm&#10;D)local data encryption algorithm

Accepted Answer

PGP (Pretty Good Privacy) uses the International Data Encryption Algorithm (IDEA) as its standard block cipher for encrypting data. IDEA is known for its strength and was widely used in the early versions of PGP for securing electronic communication.

Question 4

IKE creates SAs for _____.&#10;A)ssl&#10;B)pgp&#10;C)ipsec&#10;D)vp

Accepted Answer

IKE (Internet Key Exchange) is used to create Security Associations (SAs) for IPsec (Internet Protocol Security) to secure communication over an IP network.

Question 5

SSL provides _________.&#10;A)message integrity&#10;B)confidentiality&#10;C)compression&#10;D)all of the above

Accepted Answer

SSL (Secure Sockets Layer) provides message integrity, ensuring that data cannot be tampered with during transmission. It also provides confidentiality by encrypting data, making it unreadable to unauthorized parties. Additionally, SSL can support compression, although this is not its primary function. Thus, all of the options listed are correct.

Question 6

IKE uses _______&#10;A)oakley&#10;B)skeme&#10;C)isakmp&#10;D)all of the above

Accepted Answer

IKE (Internet Key Exchange) uses all of the above protocols/components: Oakley, SKEME, and ISAKMP. Oakley and SKEME provide mechanisms for key exchange, while ISAKMP defines the procedures and packet formats to establish, negotiate, modify, and delete security associations.

Question 7

In ______, there is a single path from the fully trusted authority to any certificate.&#10;A)x509&#10;B)pgp&#10;C)kdc&#10;D)none of the above

Accepted Answer

In x509, there is a hierarchical trust model which ensures a single path from the root authority to any given certificate, unlike PGP which uses a web of trust model.

Question 8

_______ uses the idea of certificate trust levels.&#10;A)x509&#10;B)pgp&#10;C)kdc&#10;D)none of the above

Accepted Answer

PGP (Pretty Good Privacy) uses the idea of certificate trust levels, where trust is decentralized and users can sign each other's keys, creating a web of trust. This contrasts with the hierarchical trust model used in systems like X.509.

Question 9

________ provides privacy, integrity, and authentication in e-mail.&#10;A)ipsec&#10;B)ssl&#10;C)pgp&#10;D)none of the above

Accepted Answer

PGP, or Pretty Good Privacy, is specifically designed to provide privacy, integrity, and authentication for email communication. It encrypts emails to ensure their privacy, digitally signs them for integrity, and verifies the identity of the sender for authentication.

Question 10

In _____, there can be multiple paths from fully or partially trusted authorities.&#10;A)x509&#10;B)pgp&#10;C)kdc&#10;D)none of the above

Accepted Answer

PGP (Pretty Good Privacy) uses a web of trust model, where trust is decentralized. Users can sign each other's keys, creating multiple paths of trust from various authorities, unlike the hierarchical trust model used in X.509 certificates.

Question 11

______ provides authentication at the IP level.&#10;A)ah&#10;B)esp&#10;C)pgp&#10;D)ssl

Accepted Answer

The answer of ______ provides authentication at the IP level.&#10;A)ah&#10;B)esp&#10;C)pgp&#10;D)ssl...

Question 12

In _______, the cryptographic algorithms and secrets are sent with the message.&#10;A)ipsec&#10;B)ssl&#10;C)tls&#10;D)pgp

Accepted Answer

The answer of In _______, the cryptographic algorithms and secrets...

Question 13

______ was invented by Phil Zimmerman.&#10;A)ipsec&#10;B)ssl&#10;C)pgp&#10;D)none of the above

Accepted Answer

The answer of ______ was invented by Phil Zimmerman.&#10;A)ipsec&#10;B)ssl&#10;C)pgp&#10;D)none of...

Question 14

ISAKMP stands for ______&#10;A)internet system association and key management packet&#10;B)internet security association and key management protocol&#10;C)interchange system and key modeling protocol&#10;D)internet security association and key modeling protocol

Accepted Answer

The answer of ISAKMP stands for ______&#10;A)internet system association and...

Question 15

PGP makes use of which cryptographic algorithm?&#10;A)des&#10;B)aes&#10;C)rsa&#10;D)rabin

Accepted Answer

The answer of PGP makes use of which cryptographic algorithm?&#10;A)des&#10;B)aes&#10;C)rsa&#10;D)rabin...

Question 16

What is the key size allowed in PGP?&#10;A)1024-1056&#10;B)1024-4056&#10;C)1024-4096&#10;D)1024-2048

Accepted Answer

The answer of What is the key size allowed in...

Question 17

In SSL, what is used for authenticating a message?&#10;A)mac (message access code)&#10;B)mac (message authentication code)&#10;C)mac (machine authentication code)&#10;D)mac (machine access code)

Accepted Answer

The answer of In SSL, what is used for authenticating...

Question 18

Security Measures Needed to protect ________ during their transmission&#10;A)file&#10;B)data&#10;C)packet&#10;D)all of above

Accepted Answer

The answer of Security Measures Needed to protect ________ during...

Question 19

__________ means knowledge obtained from investigation, study , intelligence new ,facts .&#10;A)security&#10;B)data&#10;C)information&#10;D)none of these

Accepted Answer

The answer of __________ means knowledge obtained from investigation, study...

Question 20

Protection against Denial by one of these parties in a communication refers to?&#10;A)non-repudiation&#10;B)data integrity&#10;C)authentication&#10;D)none of these

Accepted Answer

The answer of Protection against Denial by one of these...

Question 21

Which One of them is Passive attack?&#10;A)denial of service&#10;B)modify message in transit&#10;C)replay previous message&#10;D)obtain message contain

Accepted Answer

The answer of Which One of them is Passive attack?&#10;A)denial...

Question 22

What is lying of IP address called as?&#10;A)ip spoofing&#10;B)ip scamming&#10;C)ip lying&#10;D)none of theses

Accepted Answer

The answer of What is lying of IP address called...

Question 23

What is full form of DDoS?&#10;A)derived denial of service&#10;B)distributed denial of service&#10;C)denial of service&#10;D)none of these

Accepted Answer

The answer of What is full form of DDoS?&#10;A)derived denial...

Deck 7: Cryptography and Security Measures in Network Communication