A vulnerability that would allow an unauthenticated, remote attacker to originate a DoS attack was found in a DHCP client implementation of a switch. Which of the following would BEST resolve the issue?
A. Verify the default passwords have been changed.
B. Upgrade to the latest firmware
C. Generate new SSH keys.
D. Review and modify the firewall rules.
When deploying UTP cables in a networking environment, which of the following are acceptable standards? (Choose two.)
A. 10Base2
B. 10Base5
C. 10GBaseT
D. 1000BaseLX
E. 1000BaseSX
F. 1000BaseT
Which of the following protocols is used by Active Directory for authentication?
A. SSH
B. SFTP
C. LDAP
D. TLS
A zero-day vulnerability is discoverd that affects a specific network device. This vulnerability only affects services on port 21. This network device is restricted to use only secure protocols and services. Which of the following explains why this device is secure?
A. Because secure protocols would reject malicious packets
B. Because SCP is not a secure service
C. Because FTP is not a secure service
D. Because a secure firewall will protect the device
A customer wants to set up a guest wireless network for visitors. The customer prefers to not have a password on the network. Which of the following should a technician set up to force guests to provide information before using the network?
A. Single sign-on
B. RADIUS
C. TACACS+
D. Captive portal
A network engineer is trying to determine where to place a firewall based on the flow of traffic. Which of the following types of documentation would assist the engineer in doing this?
A. Change management
B. Rack diagram
C. Network configuration
D. Network diagram
A user believes a work email account has been compromised. A technician discovers that an email seeming to be from the user's bank shares the same origin IP address as the last login to the email account. Which of the following types of attack is described in this scenario?
A. Spam
B. Ransomware
C. Man-in-the-middle
D. Phishing
A wireless access point that was working in a large warehouse last week is now offline. The technician observes there is no power to the device. The technician verifies PoE is working on the switchport, and then confirms the wireless access point is still not powering up. Which of the following is the MOST likely issue?
A. Attenuation
B. Incorrect pin-out
C. Damaged cable
D. Switch configuration
Which of the following is the MOST secure type of remote administration?
A. SSH over IPsec client-to-site VPN
B. RDP over SSLv2 HTTPS terminal services gateway
C. HTTP over WPA2-TKIP WiFi
D. Telnet over PSTN
Before upgrading the firmware on several routers, a technician must verify the firmware file received is the same one the vendor provided. Which of the following should the technician use?
A. 3DES encryption
B. SSL certificate
C. Digital signatures
D. MD5 hash
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