Employment of Cryptography

PGP is a form of what?
1. Asymmetric encryption
2. Symmetric encryption.
3. Elliptic curve cipher
4. Hashing algorithm.
Which of the following encryption algorithms is a stream cipher?
1. RC5.
2. AES
3. PGP.
4. RC4.
Which of the following is an asymmetric cryptographic cipher?
1. 3DES
2. AES
3. RC4
4. RSA
When visiting an e-commerce site, which of the following cryptographic
technologies is NORMALLY used?
1. BitLocker.
2. SSL/TLS
3. WPA2
4. DRM
Which technology is TYPICALLY used to encrypt communications over a
public wireless network?
1. Telnet
2. VPN
3. TETRA
4. WEP
Smart cards are TYPICALLY used as a form of what?
1. Cryptocurrency
2. Copy protection
3. Two-factor authentication
4. Document encryption
What is a brute force attack?
1. Using zombies to send large amounts of network traffic
2. Trying all possible password combinations
3. Encrypting users’ files and asking for a payment in return
4. Sniffing unencrypted packets with Wireshark.
Which of the following is an example of a replay attack?
1. Capturing a banking transaction and re-sending it at a later date
2. Logging into a website multiple times with many different passwords
3. Poisoning an ARP cache to impersonate a server
4. Monitoring a card reader for voltage fluctuations when a door is opened
What is an attack based on information gained from the physical
implementation of a cryptosystem called?
1. Sniffer attack
2. Brute-force-attack
3. Cryptanalytic attack
4. Side-channel attack
Which of the following encryption algorithms is obsolete?
1. Twofish
2. MD5
3. PGP
4. DES
Which of the following hashing algorithms is no longer recommended?
1. SHA2
2. AES128
3. SHA1
4. AES256
Which stage of key management is TYPICALLY associated with an OTP
device that has expired and is no longer required?
1. Revocation
2. Destruction
3. Regeneration
4. Redeployment
In the generation stage of the key lifecycle, there is a requirement that a third
party may need access to the key. Which of the following COULD be
implemented?
1. Key escrow
2. Shared credentials
3. Intermediate CA
4. Pre-shared key
Which of the following is a limitation of using symmetric encryption
1. Symmetric keys are very resource intensive
2. Encryption keys must be communicated to both parties securely
3. Symmetric keys are not trusted by all browsers
4. A key revocation list must be implemented and tested
When managing keys, which of the following is TYPICALLY a limitation of
using asymmetric encryption?
1. The availability of a certificate authority
2. Sharing the private keys securely
3. A revocation process is not possible
4. Not supported for web browsing
Entropy in a computer system may be used for which of the following
purposes?
1. To detect intrusion attempts by their signature
2. To verify passwords at login
3. To create session keys
4. To scan attachments for threats
There is a business requirement to enable full disk encryption on all company
PCs. Which of the following technologies COULD be used?
1. Fingerprint scanner
2. Password manager
3. Two-factor authentication
4. BitLocker
A technologist sends confidential information over WhatsApp. Which of the
following PRIMARILY prevents a third party from reading the message?
1. Official App Store / Google Play app
2. Secure Hash Algorithm
3. A secure wireless network
4. End-to-end encryption
Which of the following is a KEY consideration when importing cryptography?
1. Must use the latest algorithms
2. Import licenses
3. Contractual agreements
4. Written approval from the vendor
Which regulation requires cyber responders and security researchers to
obtain an export license prior to exchanging essential information to fix a
newly identified security vulnerability?
1. General Data Protection Regulation
2. Sarbanes-Oxley Act
3. Wassenaar Arrangement Export Control regime
4. Data Protection Act

Employment of Cryptography

Quiz