EC-COUNCIL 312-50V8 Online Practice Questions and Exam Preparation

EC-COUNCIL 312-50V8 Online Questions & Answers

• Question 271:

  You are having problems while retrieving results after performing port scanning during internal testing. You verify that there are no security devices between you and the target system. When both stealth and connect scanning do not work, you decide to perform a NULL scan with NMAP. The first few systems scanned shows all ports open.

  Which one of the following statements is probably true?

  A. The systems have all ports open.
  B. The systems are running a host based IDS.
  C. The systems are web servers.
  D. The systems are running Windows.
  D. The systems are running Windows.

• Question 272:

  What does a type 3 code 13 represent?(Choose two.)

  A. Echo request
  B. Destination unreachable
  C. Network unreachable
  D. Administratively prohibited
  E. Port unreachable
  F. Time exceeded
  B. Destination unreachable
  D. Administratively prohibited

• Question 273:

  Steven the hacker realizes that the network administrator of XYZ is using syskey to protect organization resources in the Windows 2000 Server. Syskey independently encrypts the hashes so that physical access to the server, tapes, or ERDs is only first step to cracking the passwords. Steven must break through the encryption used by syskey before he can attempt to brute force dictionary attacks on the hashes. Steven runs a program called "SysCracker" targeting the Windows 2000 Server machine in attempting to crack the hash used by Syskey. He needs to configure the encryption level before he can launch attach.

  How many bits does Syskey use for encryption?

  A. 40 bit
  B. 64 bit
  C. 256 bit
  D. 128 bit
  D. 128 bit

• Question 274:

  Which of the following algorithms can be used to guarantee the integrity of messages being sent, in transit, or stored? (Choose the best answer)

  A. symmetric algorithms
  B. asymmetric algorithms
  C. hashing algorithms
  D. integrity algorithms
  C. hashing algorithms

• Question 275:

  Charlie is the network administrator for his company. Charlie just received a new Cisco router and wants to test its capabilities out and to see if it might be susceptible to a DoS attack resulting in its locking up. The IP address of the Cisco switch is 172.16.0.45.

  What command can Charlie use to attempt this task?

  A. Charlie can use the commanD. ping -l 56550 172.16.0.45 -t.
  B. Charlie can try using the commanD. ping 56550 172.16.0.45.
  C. By using the command ping 172.16.0.45 Charlie would be able to lockup the router
  D. He could use the commanD. ping -4 56550 172.16.0.45.
  A. Charlie can use the commanD. ping -l 56550 172.16.0.45 -t.

• Question 276:

  On a Linux device, which of the following commands will start the Nessus client in the background so that the Nessus server can be configured?

  A. nessus +
  B. nessus *s
  C. nessus and
  D. nessus -d
  C. nessus and

• Question 277:

  The "Black box testing" methodology enforces which kind of restriction?

  A. Only the external operation of a systemis accessible to the tester
  B. The internal operation of a system is completely known to the tester.
  C. Only the internal operation of a system is known to the tester.
  D. The internal operation of a system is only partly accessible to the tester.
  A. Only the external operation of a systemis accessible to the tester

• Question 278:

  Which of the following are variants of mandatory access control mechanisms? (Choose two.)

  A. Two factor authentication
  B. Acceptable use policy
  C. Username / password
  D. User education program
  E. Sign in register
  A. Two factor authentication
  C. Username / password

• Question 279:

  Ethereal works best on ____________.

  A. Switched networks
  B. Linux platforms
  C. Networks using hubs
  D. Windows platforms
  E. LAN's
  C. Networks using hubs

• Question 280:

  An attacker has successfully compromised a remote computer.

  Which of the following comes as one of the last steps that should be taken to ensure that the compromise cannot be traced back to the source of the problem?

  A. Install patches
  B. Setup a backdoor
  C. Install a zombie for DDOS
  D. Cover your tracks
  D. Cover your tracks