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A network technician receives a call from a use who is experiencing network connectivity issues.
The network technician questions the user and learns the user brought in a personal wired router to use multiple computers and connect to the network.
Which of the following has the user MOST likely introduced to the network?
A. Rogue DHCP server
B. Evil twin
C. VLAN mismatch
D. Honeypot
Answer: A
A technician is setting up a direct connection between two older PCs so they can communicate but not be on the
corporate network. The technician does not have access to a spare switch but does have spare Cat 6 cables, RJ-45
plugs, and a crimping tool. The technician cuts off one end of the cable. Which of the following should the technician do
to make a crossover cable before crimping the new plug?
A Reverse the wires leading to pins 1 and 2
B Reverse the wires leading to pins 1 and 3
C Reverse the wires leading to pins 2 and 3
D Reverse the wires leading to pins 2 and 4
Answer: D
An office network consists of one two-port router connected to a 12-port switch. A four-port hub is also connected to the
switch. On this particular network, which of the following is the number of collision domain that exist?
A 3 B 12 C 13 D 14 E 15
Answer: D
A network technician wants to remotely and securely access the desktop of a Linux workstation. The desktop is running
remote control software without encryption. Which of the following should the technician use to secure the connection?
A. SSH in tunnel mode
B. RDP set to console connection
C. EAP-PEAP
D. SFTP
Answer: A
Which of the following should current network performance be compared against to determine network anomalies?
A Baseline
B Traffic analysis
C Packet capture
D Logs
Answer A
A network administrator configures an email server to use secure protocols. When the upgrade is completed, which of the following ports on the firewall should be configured to allow for connectivity? (Choose three.) A TCP 25 B TCP 110 C TCP 143 D TCP 389 E TCP 587 F TCP 993 G TCP 995
Answer: E F G
After a server outage, a technician discovers that a physically damaged fiber cable appears to be the problem.
After replacing the cable, the server will still not connect to the network. Upon inspecting the cable at the server end, the technician discovers light can be seen through one of the two fiber strands.
Which of the following should the technician do FIRST to reconnect the server to the network?
A Reverse the fiber strands of the cable and reconnect them to the server
B Use a TDR to test both strands of a new replacement cable prior to connecting it to the server
C Replace the server’s single-mode fiber cable with multimode fiber
D Move the fiber cable to different port on the switch where both strands function
Answer: A
The backups server connects to a NAS device using block-level storage over Ethernet. The performance is very slow, however, and the network technician suspects the performance issues are network related. Which of the following should the technician do to improve performance?
A. Utilize UDP to eliminate packet overhead
B. Turn off MDIX settings on the NAS and server switchports
C. Enable jumbo frames on the NAS and server
D. Encapsulate the storage traffic in a GRE tunnel
ANSWER C
A technician is trying to determine the IP address of a customer’s router. The customer has an IP address of 192.168.1.55/24. Which of the following is the address of the customer’s router?
A 192.168.0.55 B 192.168.1.0 C 192.168.1.1 D 192.168.5.5 E 255.255.255.0
Answer C
A network technician is able to connect the switches between to offices, but the offices cannot communicate with each other, as each office uses a different IP addressing scheme. Which of the following devices needs to be installed between the switches to allow communication?
A Bridge
B Access point
C Router
D Range extender
ANSWER IS C (AGAIN)
A network technician is working on a proposal for email migration from an on-premises email system to a vendor-hosted
email in the cloud. The technician needs to explain to management what type of cloud model will be utilized with the
cloud-hosted email. Which of the following cloud models should the technician identify in the proposal?
A IaaS
B PaaS
C SaaS
D MaaS
ANSWER IS C
Which of the following is the correct port number for NTP?
A 25
B 69
C 123
D 161
ANSWER IS C
A technician is upgrading the firmware on an older KVM switch. The specifications call for a serial port to connect to the computer on one side, and an Ethernet jack to connect to the switch on the other side.
Which of the following connectors does the technician need for this cable? (Choose two.)
A RG-9 B DB-9 C RJ-11 D DB-25 E RJ-45 F BNC
ANSWERS ARE B and E
An end-user device requires a specific IP address every time it connects to the corporate network; however, corporate policy does not allow the use of static IP addresses. Which of the following will allow the request to be fulfilled without
breaking the corporate policy?
A DHCP relay
B DHCP exclusion
C DHCP option
E DHCP reservation
ANSWER IS D
A technician is planning a remote-access strategy to manage routers and switches on a dedicated management network.
The management network is segregated from the production network and uses site-to-site VPN connections. Some of the equipment does not support encryption. Which of the following should the technician choose that all the equipment would support?
A Telnet
B SSL
C SSH
D IPSec
ANSWER IS A