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Q1. When a client calls and describes a problem with a computer not being able to reach the Internet, in which of the following places of the OSI model would a technician begin troubleshooting?
A. Transport layer
B. Physical layer
C. Network layer
D. Session layer
Answer: B
Q2. CORRECT TEXT
Alter recent changes to the pictured network, several users are unable to access the servers. Only PC1, PC2, PC3, and PC4 are clickable and will give you access to the command prompt and the adapter configuration tabs.
Instructions: Verify the settings by using the command prompt, after making any system changes. Next, restore connectivity by making the appropriate changes to the infrastructure. When you have completed these steps, select the Done button to submit.
Answer:
On PC3, change the subnet mask to 255.255.255.0. When it is set to 255.255.255.128, then the PC with a .129 address will not be on the same subnet as the default gateway which is .1 On PC4, change the default gateway to 10.0.2.1. It has been incorrectly set as 10.1.2.1.
Q3. Which of the following helps prevent routing loops?
A. Routing table
B. Default gateway
C. Route summarization
D. Split horizon
Answer: D
Q4. A technician recently ran a 20-meter section of CAT6 to relocate a control station to a more central area on the production floor. Since the relocation, the helpdesk has received complaints about intermittent operation. During the troubleshooting process, the technician noticed that collisions are only observed on the switch port during production. Given this information, which of the following is the cause of the problem?
A. Distance limitation
B. Electromagnetic interference
C. Cross talk
D. Speed and duplex mismatch
Answer: B
Q5. A network technician is assisting the company with developing a new business continuity plan. Which of the following would be an appropriate suggestion to add to the plan?
A. Build redundant links between core devices
B. Physically secure all network equipment
C. Maintain up-to-date configuration backups
D. Perform reoccurring vulnerability scans
Answer: A
Q6. A technician needs to secure web traffic for a new e-commerce website. Which of the following will secure traffic between a web browser and a website?
A. SSL
B. DNSSEC
C. WPA2
D. MTU
Answer: A
Q7. 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
Q8. Before logging into the company network, users are required to sign a document that is to be stored in their personnel file. This standards and policies document is usually called which of the following?
A. SOP
B. BEP
C. AUP
D. SLA
Answer: C
Q9. Which of the following is used to authenticate remote workers who connect from offsite? (Select TWO).
A. OSPF
B. VTP trunking
C. Virtual PBX
D. RADIUS
E. 802.1x
Answer: DE
Q10. A technician needs to ensure that new systems are protected from electronic snooping of Radio Frequency emanations. Which of the following standards should be consulted?
A. DWDM
B. MIMO
C. TEMPEST
D. DOCSIS
Answer: C
Q11. Which of the following communication technologies would MOST likely be used to increase bandwidth over an existing fiber optic network by combining multiple signals at different wavelengths?
A. DWDM
B. SONET
C. ADSL
D. LACP
Answer: A
Q12. A network technician is diligent about maintaining all system servers' at the most current service pack level available. After performing upgrades, users experience issues with server-based applications. Which of the following should be used to prevent issues in the future?
A. Configure an automated patching server
B. Virtualize the servers and take daily snapshots
C. Configure a honeypot for application testing
D. Configure a test lab for updates
Answer: D
Q13. A technician is tasked with connecting a router to a DWDM. The technician connects the router to the multiplexer and confirms that there is a good signal level. However, the interface on the router will not come up. Which of the following is the MOST likely cause?
A. The wrong wavelength was demuxed from the multiplexer.
B. The SFP in the multiplexer is malfunctioning.
C. There is a dirty connector on the fiber optic cable.
D. The fiber optic cable is bent in the management tray.
Answer: A
Q14. A network technician has set up an FTP server for the company to distribute software updates for their products. Each vendor is provided with a unique username and password for security. Several vendors have discovered a virus in one of the security updates. The company tested all files before uploading them but retested the file and found the virus. Which of the following could the technician do for vendors to validate the proper security patch?
A. Use TFTP for tested and secure downloads
B. Require biometric authentication for patch updates
C. Provide an MD5 hash for each file
D. Implement a RADIUS authentication
Answer: C
Q15. A network technician must create a wireless link between two buildings in an office park utilizing the 802.11ac standard. The antenna chosen must have a small physical footprint and minimal weight as it will be mounted on the outside of the building. Which of the following antenna types is BEST suited for this solution?
A. Yagi
B. Omni-directional
C. Parabolic
D. Patch
Answer: A