A technician uses a badge to enter a security checkpoint on a corporate campus. An unknown individual quickly
walks in behind the technician without speaking. Which of the following types of attacks did the technician
experience?


A. Tailgating
B. Evil twin
C. On-path
D. Piggybacking

An engineer is gathering data to determine the effectiveness of UPSs in use at remote retail locations. Which of
the following statistics can the engineer use to determine the availability of the remote network equipment?


A. Uptime
B. NetFlow baseline
C. Review TTL stats
D. Interface statistics

A fiber patch cable, which was being stored in an unsecure telecommunications closet with janitorial supplies,
was damaged and caused an outage. A network technician replaced the broken cable with a new cable from a
sealed bag. However, this solution did not resolve the outage. Which of the following is the MOST likely
explanation?


A. Incorrect pinout
B. Incorrect transceivers
C. Reversed transmit and receive
D. Dirty optical cables

A customer called the help desk to report a network issue. The customer recently added a hub between the
switch and the router in order to duplicate the traffic flow to a logging device. After adding the hub, all the other
network components that were connected to the switch slowed more than expected. Which of the following is
the MOST likely cause of the issue?


A. Duplex mismatch
B. Flow control failure
C. STP malfunction
D. 802.1Q disabled

Which of the following is the MOST effective security control to keep a company's physical perimeter protected
against intrusions leveraged by social-engineering techniques?


A. Employee training
B. Biometric lockers
C. Access control vestibule
D. Motion detection

A PC and a network server have no connectivity, and a help desk technician is attempting to resolve the issue.
The technician plans to run a constant ping command from a Windows workstation while testing various
possible reasons for the connectivity issue. Which of the following should the technician use?


A. ping -w
B. ping -i
C. ping -s
D. ping -t

Which of the following has the capability to centrally manage configuration, logging, and firmware versioning for
distributed devices?


A. WLAN controller
B. Load balancer
C. SIEM solution
D. Syslog server

A newly installed multifunction copier needs to be set up so scanned documents can be emailed to recipients.
Which of the following ports from the copier's IP address should be allowed?


A. 22
B. 25
C. 53
D. 80

Which of the following default ports is MOST likely used to send availability and environmental messages about
specific devices across the network?


A. 23
B. 53
C. 389
D. 514
E. 3306

A network architect is developing documentation for an upcoming IPv4/IPv6 dual-stack implementation. The
architect wants to shorten the following IPv6 address: ef82:0000:0000:0000:0000:1ab1:1234:1bc2. Which of
the following is the MOST appropriate shortened version?


A. ef82:0:1ab1:1234:1bc2
B. ef82:0::1ab1:1234:1bc2
C. ef82:0:0:0:0:1ab1:1234:1bc2
D. ef82::1ab1:1234:1bc2