A network administrator is tasked with blocking unwanted spam which is being relayed by an internal email server. Which of the following is the FIRST step in preventing spam that is originating from bots on the network?
A. Closing off port 25 on the firewall
B. Closing off port 53 on the firewall
C. Turning off the SMTP service on the email server
D. Turning off the IMAP service on the email server
A home user wishes to secure the wireless network using strong encryption, so they decide to use AES. Which of the following would be used as the encryption method?
A. WEP
B. CCMP
C. TKIP
D. CHAP
Which of the following VPN technologies uses IKE and ISAKMP for key exchange?
A. SSL
B. IPSec
C. L2TP
D. PPTP
A user reports that they are unable to access a new server but are able to access all other network resources. Based on the following firewall rules and network information, which of the following ACL entries is the cause?
User's IP: 192.168.5.14 Server IP: 192.168.5.17 Firewall rules: Permit 192.168.5.16/28 192.168.5.0/28 Permit 192.168.5.0/24192.168.4.0/24 Permit 192.168.4.0/24192.168.5.0/24 Deny 192.168.5.0/28 192.168.5.16/28 Deny 192.168.14.0/24192.168.5.16/28 Deny 192.168.0.0/24 192.168.5.0/24
A. Deny 192.168.0.0/24 192.168.5.0/24
B. Deny 192.168.5.0/28 192.168.5.16/28
C. Deny 192.168.14.0/24 192.168.5.16/28
D. Implicit Deny rule
Which of the following authentication methods is MOST secure?
A. NTLM
B. CHAP
C. MS-CHAP
D. Kerberos
A user wants to send information and ensure that it was not modified during transmission. Which of the following should be implemented?
A. MAC filtering
B. Digital signatures
C. MS-CHAP
D. CHAP
Which of the following protocols can be implemented to provide encryption during transmission between email gateways?
A. TLS
B. PPTP
C. SSH
D. HTTPS
The company requires all users to authenticate to the network with a smart card, a pin number, and a fingerprint scan. Which of the following BEST describes the user authentication being used?
A. Multi-factor authentication
B. Two-factor authentication
C. Biometrics
D. Single sign-on
When installing new WAPs in a small office, which of the following is the BEST way to physically mitigate the threats from war driving?
A. Implement multiple wireless encryption techniques.
B. Implement PoE on each WAP.
C. Decrease signal strength.
D. Increase signal strength.
A company wants to simplify network authentication for their users.
Which of the following would be used to implement wireless security with single sign-on?
A. WPA2 enterprise
B. WEP
C. Stateful firewall
D. PAT
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