Q11. A company wants to create highly available datacenters. Which of the following will allow the company to continue to maintain an Internet presence at all sites in the event that a WAN circuit at one site goes down?
A. Load balancer
B. VRRP
C. OSPF
D. BGP
Answer: D
Q12. A network technician is performing a tracert command to troubleshoot a website-related issue. The following output is received for each hop in the tracert: 1 * * * Request timed out.
2 * * * Request timed out.
3 * * * Request timed out.
The technician would like to see the results of the tracert command. Which of the following will allow the technician to perform tracert on external sites but not allow outsiders to discover information from inside the network?
A. Enable split horizon to allow internal tracert commands to pass through the firewall
B. Enable IGMP messages out and block IGMP messages into the network
C. Configure the firewall to allow echo reply in and echo request out of the network
D. Install a backdoor to access the router to allow tracert messages to pass through
Answer: C
Q13. A technician, Joe, needs to troubleshoot a recently installed NIC. He decides to ping the local loopback address. Which of the following is a valid IPv4 loopback address?
A. 10.0.0.1
B. 127.0.0.1
C. 172.16.1.1
D. 192.168.1.1
Answer: B
Q14. A technician is setting up a new network and wants to create redundant paths through the network. Which of the following should be implemented to prevent performance degradation?
A. Port mirroring
B. Spanning tree
C. ARP inspection
D. VLAN
Answer: B
Q15. When configuring a new server, a technician requests that an MX record be created in DNS for the new server, but the record was not entered properly. Which of the following was MOST likely installed that required an MX record to function properly?
A. Load balancer
B. FTP server
C. Firewall DMZ
D. Mail server
Answer: D
Q16. A technician is installing a surveillance system for a home network. The technician is unsure which ports need to be opened to allow remote access to the system. Which of the following should the technician perform?
A. Disable the network based firewall
B. Implicit deny all traffic on network
C. Configure a VLAN on Layer 2 switch
D. Add the system to the DMZ
Answer: D
Q17. Ann, a user, is experiencing an issue with her wireless device. While in the conference area, the wireless signal is steady and strong. However, at her desk the signal is consistently dropping, yet the device indicates a strong signal. Which of the following is the MOST likely cause of the issue?
A. Signal-to-noise ratio
B. AP configuration
C. Incorrect SSID
D. Bounce
Answer: D
Q18. Which of the following would be used in an IP-based video conferencing deployment? (Select TWO).
A. RS-232
B. 56k modem
C. Bluetooth
D. Codec
E. SIP
Answer: DE
Q19. A technician has finished configuring AAA on a new network device. However, the technician is unable to log into the device with LDAP credentials but is able to do so with a local user account. Which of the following is the MOST likely reason for the problem?
A. Username is misspelled is the device configuration file
B. IDS is blocking RADIUS
C. Shared secret key is mismatched
D. Group policy has not propagated to the device
Answer: C
Q20. When convergence on a routed network occurs, which of the following is true?
A. All routers are using hop count as the metric
B. All routers have the same routing table
C. All routers learn the route to all connected networks
D. All routers use route summarization
Answer: C