Employees in a company are no longer able to access Internet web sites on their computers. The network administrator is able to successfully ping IP address of web servers on the Internet and is able to open web sites by using an IP address in place of the URL. The administrator runs the nslookup command for www.eccouncil.org and receives an error message stating there is no response from the server. What should the administrator do next?
A. Configure the firewall to allow traffic on TCP ports 53 and UDP port 53.
B. Configure the firewall to allow traffic on TCP ports 80 and UDP port 443.
C. Configure the firewall to allow traffic on TCP port 53.
D. Configure the firewall to allow traffic on TCP port 8080.
What is the main disadvantage of the scripting languages as opposed to compiled programming languages?
A. Scripting languages are hard to learn.
B. Scripting languages are not object-oriented.
C. Scripting languages cannot be used to create graphical user interfaces.
D. Scripting languages are slower because they require an interpreter to run the code.
Which of the following are password cracking tools? (Choose three.)
A. BTCrack
B. John the Ripper
C. KerbCrack
D. Nikto
E. Cain and Abel
F. Havij
Some passwords are stored using specialized encryption algorithms known as hashes. Why is this an appropriate method?
A. It is impossible to crack hashed user passwords unless the key used to encrypt them is obtained.
B. If a user forgets the password, it can be easily retrieved using the hash key stored by administrators.
C. Hashing is faster compared to more traditional encryption algorithms.
D. Passwords stored using hashes are non-reversible, making finding the password much more difficult.
Which tool would be used to collect wireless packet data?
A. NetStumbler
B. John the Ripper
C. Nessus
D. Netcat
Which of the following processes evaluates the adherence of an organization to its stated security policy?
A. Vulnerability assessment
B. Penetration testing
C. Risk assessment
D. Security auditing
Which of the following statements are true regarding N-tier architecture? (Choose two.)
A. Each layer must be able to exist on a physically independent system.
B. The N-tier architecture must have at least one logical layer.
C. Each layer should exchange information only with the layers above and below it.
D. When a layer is changed or updated, the other layers must also be recompiled or modified.
Which of the following types of firewall inspects only header information in network traffic?
A. Packet filter
B. Stateful inspection
C. Circuit-level gateway
D. Application-level gateway
An attacker sniffs encrypted traffic from the network and is subsequently able to decrypt it. The attacker can now use which cryptanalytic technique to attempt to discover the encryption key?
A. Birthday attack
B. Plaintext attack
C. Meet in the middle attack
D. Chosen ciphertext attack
Low humidity in a data center can cause which of the following problems?
A. Heat
B. Corrosion
C. Static electricity
D. Airborne contamination
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