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Total 822 questions
A technician is troubleshooting a wireless connectivity issue in a small office located in a high-rise building. Several APs are mounted in this office. The users report that the network connections frequently disconnect and reconnect throughout the day. Which of the following is the MOST likely cause of this issue?
- A. The AP association time is set too low
- B. EIRP needs to be boosted
- C. Channel overlap is occurring
- D. The RSSI is misreported
Answer : B
A network engineer configured new firewalls with the correct configuration to be deployed to each remote branch. Unneeded services were disabled, and all firewall rules were applied successfully. Which of the following should the network engineer perform NEXT to ensure all the firewalls are hardened successfully?
- A. Ensure an implicit permit rule is enabled
- B. Configure the log settings on the firewalls to the central syslog server
- C. Update the firewalls with current firmware and software
- D. Use the same complex passwords on all firewalls
Answer : C
At which of the following OSI model layers would a technician find an IP header?
- A. Layer 1
- B. Layer 2
- C. Layer 3
- D. Layer 4
Answer : C
An engineer is configuring redundant network links between switches. Which of the following should the engineer enable to prevent network stability issues?
- A. 802.1Q
- B. STP
- C. Flow control
- D. CSMA/CD
Answer : B
Several WIFI users are reporting the inability to connect to the network. WLAN users on the guest network are able to access all network resources without any performance issues. The following table summarizes the findings after a site survey of the area in question:
Which of the following should a wireless technician do NEXT to troubleshoot this issue?
- A. Reconfigure the channels to reduce overlap
- B. Replace the omni antennas with directional antennas
- C. Update the SSIDs on all the APs
- D. Decrease power in AP 3 and AP 4
Answer : A
Which of the following routing protocols is used to exchange route information between public autonomous systems?
- A. OSPF
- B. BGP
- C. EIGRP
- D. RIP
Answer : B
A fiber link connecting two campus networks is broken. Which of the following tools should an engineer use to detect the exact break point of the fiber link?
- A. OTDR
- B. Tone generator
- C. Fusion splicer
- D. Cable tester
- E. PoE injector
Answer : A
Which of the following can be used to centrally manage credentials for various types of administrative privileges on configured network devices?
- A. SSO
- B. TACACS+
- C. Zero Trust
- D. Separation of duties
- E. Multifactor authentication
Answer : B
A network technician is installing new software on a Windows-based server in a different geographical location. Which of the following would be BEST for the technician to use to perform this task?
- A. RDP
- B. SSH
- C. FTP
- D. DNS
Answer : A
Branch users are experiencing issues with videoconferencing. Which of the following will the company MOST likely configure to improve performance for these applications?
- A. Link Aggregation Control Protocol
- B. Dynamic routing
- C. Quality of service
- D. Network load balancer
- E. Static IP addresses
Answer : C
A technician is assisting a user who cannot connect to a network resource. The technician first checks for a link light. According to troubleshooting methodology, this is an example of:
- A. using a bottom-to-top approach.
- B. establishing a plan of action.
- C. documenting a finding.
- D. questioning the obvious.
Answer : D
Which of the following transceiver types can support up to 40Gbps?
- A. SFP+
- B. QSFP+
- C. QSFP
- D. SFP
Answer : B
Which of the following TCP ports is used by the Windows OS for file sharing?
- A. 53
- B. 389
- C. 445
- D. 1433
Answer : C
A network administrator redesigned the positioning of the APs to create adjacent areas of wireless coverage. After project validation, some users still report poor connectivity when their devices maintain an association to a distanced AP. Which of the following should the network administrator check FIRST?
- A. Validate the roaming settings on the APs and WLAN clients
- B. Verify that the AP antenna type is correct for the new layout
- C. Check to see if MU-MIMO was properly activated on the APs
- D. Deactivate the 2.4GHz band on the APS
Answer : A
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