EC-COUNCIL 312-50V7 Online Practice Questions and Exam Preparation

EC-COUNCIL 312-50V7 Online Questions & Answers

• Question 231:

  Which of the following is optimized for confidential communications, such as bidirectional voice and video?

  A. RC4
  B. RC5
  C. MD4
  D. MD5
  A. RC4

• Question 232:

  After a client sends a connection request (SYN) packet to the server, the server will respond (SYN- ACK) with a sequence number of its choosing, which then must be acknowledged (ACK) by the client. This sequence number is predictable; the attack connects to a service first with its own IP address, records the sequence number chosen, and then opens a second connection from a forged IP address. The attack doesn't see the SYN-ACK (or any other packet) from the server, but can guess the correct responses. If the source IP address is used for authentication, then the attacker can use the one-sided communication to break into the server. What attacks can you successfully launch against a server using the above technique?

  A. Denial of Service attacks
  B. Session Hijacking attacks
  C. Web page defacement attacks
  D. IP spoofing attacks
  B. Session Hijacking attacks

• Question 233:

  A person approaches a network administrator and wants advice on how to send encrypted email from home. The end user does not want to have to pay for any license fees or manage server services. Which of the following is the most secure encryption protocol that the network administrator should recommend?

  A. IP Security (IPSEC)
  B. Multipurpose Internet Mail Extensions (MIME)
  C. Pretty Good Privacy (PGP)
  D. Hyper Text Transfer Protocol with Secure Socket Layer (HTTPS)
  C. Pretty Good Privacy (PGP)

• Question 234:

  A covert channel is a channel that

  A. transfers information over, within a computer system, or network that is outside of the security policy.
  B. transfers information over, within a computer system, or network that is within the security policy.
  C. transfers information via a communication path within a computer system, or network for transfer of data.
  D. transfers information over, within a computer system, or network that is encrypted.
  A. transfers information over, within a computer system, or network that is outside of the security policy.

• Question 235:

  To send a PGP encrypted message, which piece of information from the recipient must the sender have before encrypting the message?

  A. Recipient's private key
  B. Recipient's public key
  C. Master encryption key
  D. Sender's public key
  B. Recipient's public key

• Question 236:

  Which port, when configured on a switch receives a copy of every packet that passes through it?

  

  A. R-DUPE Port
  B. MIRROR port
  C. SPAN port
  D. PORTMON
  C. SPAN port

• Question 237:

  Which type of scan is used on the eye to measure the layer of blood vessels?

  A. Facial recognition scan
  B. Retinal scan
  C. Iris scan
  D. Signature kinetics scan
  B. Retinal scan

• Question 238:

  In TCP communications there are 8 flags; FIN, SYN, RST, PSH, ACK, URG, ECE, CWR. These flags have decimal numbers assigned to them:

  FIN = 1 SYN = 2 RST = 4 PSH = 8 ACK = 16 URG = 32 ECE = 64 CWR = 128

  Jason is the security administrator of ASPEN Communications. He analyzes some traffic using Wireshark and has enabled the following filters.

  

  What is Jason trying to accomplish here?

  A. SYN, FIN, URG and PSH
  B. SYN, SYN/ACK, ACK
  C. RST, PSH/URG, FIN
  D. ACK, ACK, SYN, URG
  B. SYN, SYN/ACK, ACK

• Question 239:

  Which of the following is an example of two factor authentication?

  A. PIN Number and Birth Date
  B. Username and Password
  C. Digital Certificate and Hardware Token
  D. Fingerprint and Smartcard ID
  D. Fingerprint and Smartcard ID

• Question 240:

  Which property ensures that a hash function will not produce the same hashed value for two different messages?

  A. Collision resistance
  B. Bit length
  C. Key strength
  D. Entropy
  A. Collision resistance