Internet applications are timing out for users in the finance department. The company has a 10GB internet connection. Other department users are not experiencing any issues, and the performance from the core switch is good. Which of the following would best provide more bandwidth to the finance department users?
A. Link aggregation
B. Load balancer
C. Jumbo frames
D. Quality of service
Show Answer
Correct Answer: A
Explanation: Link aggregation combines multiple physical links into one logical connection, increasing the available aggregate bandwidth for the finance department’s network path. A load balancer distributes requests, jumbo frames affect frame efficiency, and QoS prioritizes traffic rather than adding bandwidth.
Question 117
A company experienced a breach and wants to implement preventive measures. The network administrator is looking for a tool that can collect, analyze, and quickly correlate known attacks. Which of the following software tools can accomplish this task?
A. Syslog collector
B. SIEM
C. Packet capture
D. SNMP traps
Show Answer
Correct Answer: B
Explanation: A SIEM (Security Information and Event Management) centrally collects and analyzes security events, then correlates them across systems to identify known attacks and suspicious activity. A syslog collector mainly gathers logs; packet capture records network traffic; and SNMP traps report device events.
Question 118
A network administrator recently configured an autonomous wireless AP and performed a throughput test via comptiaspeedtester.com. The result was 75Mbps. When connected to other APs, the results reached 500Mbps. Which of the following is most likely the reason for this difference?
A. Channel width configuration
B. DNS server issues
C. Authentication failure
D. Incorrect DHCP settings
Show Answer
Correct Answer: A
Explanation: A throughput of about 75 Mbps on one autonomous AP versus about 500 Mbps on others is most consistent with a wireless radio configuration difference, particularly a narrower channel width (for example, 20 MHz instead of 80 MHz). DNS, DHCP, and authentication issues affect name resolution, IP assignment, or connectivity rather than consistently capping wireless throughput at this level.
Question 118
A customer wants to cache commonly used content to reduce the number of pages fully downloaded from the internet. Which of the following should the network administrator recommend to the customer?
A. Proxy server
B. Code repository
C. Load balancer
D. Open relay
E. Mirrored port
Show Answer
Correct Answer: A
Explanation: A caching proxy server stores copies of frequently requested internet content and serves them locally on later requests, reducing repeated downloads from the internet.
Question 119
A global company has acquired a local company. The companies are geographically separate. The fully utilized IP address ranges for the two companies are as follows:
• Global company: 10.0.0.0/16
• Local company: 10.0.0.0/24
Which of the following can the network engineer do to quickly connect the two companies and minimize user disruption?
A. Assign static routing to advertise the local company's network.
B. Assign an overlapping IP address range to both companies.
C. Assign a new IP address range to the local company.
D. Assign a NAT range to the local company.
Show Answer
Correct Answer: D
Explanation: The local company’s 10.0.0.0/24 is contained within the global company’s 10.0.0.0/16, so the address spaces overlap and cannot be routed unambiguously. Assigning a NAT range lets the local network’s addresses be translated to a nonoverlapping range when traffic crosses between the companies, avoiding immediate readdressing of local devices. Readdressing the local company could solve the conflict longer term but would take more work and risk more disruption.
Question 119
A company is installing network cables above the ceiling tiles. The cables must be fire rated. Which of the following cable types should the company use?
A. Coaxial
B. Plenum
C. Crossover
D. STP
Show Answer
Correct Answer: B
Explanation: Plenum-rated cable is designed for installation in plenum spaces such as above suspended ceilings used for air circulation. It has a fire-resistant, low-smoke jacket that meets building fire code requirements. The other options describe cable types or wiring configurations that do not specifically indicate plenum fire rating.
Question 120
Which of the following OSI model layers is responsible for determining the most efficient path for frame transfer?
A. 1
B. 2
C. 3
D. 5
Show Answer
Correct Answer: C
Explanation: Layer 3 (the Network layer) determines the best path between networks using routing. Although frames are Layer 2 units, the path-selection function is associated with Layer 3.
Question 120
Several unauthorized APs near the corporate headquarters are broadcasting similar SSIDs. Which of the following types of attacks is being described?
A. Evil twin
B. Wi-Fi jamming
C. On-path
D. Wardriving
Show Answer
Correct Answer: A
Explanation: An evil twin attack involves a rogue wireless access point broadcasting the same or a very similar SSID as a legitimate network to lure users into connecting. Wi-Fi jamming disrupts wireless communications, on-path (man-in-the-middle) refers to intercepting communications rather than creating a fake AP, and wardriving is the act of searching for wireless networks.
Question 121
Which of the following is the best way to reduce the likelihood of electrostatic discharge?
A. Uninterruptable power supply
B. Surge protector
C. Power distribution units
D. Temperature and humidity control
Show Answer
Correct Answer: D
Explanation: Electrostatic discharge is promoted by dry environments where static charge builds up more easily. Maintaining appropriate temperature and especially humidity reduces static buildup and lowers the likelihood of ESD. The other options protect against power quality issues rather than electrostatic discharge.
Question 121
Which of the following is an attack that provides a malicious default gateway IP over a wired network?
A. Evil twin
B. DNS spoofing
C. ARP poisoning
D. Rogue DHCP server
Show Answer
Correct Answer: D
Explanation: A rogue DHCP server can supply clients with a malicious default gateway IP as part of their network configuration. ARP poisoning instead misassociates an IP address with a MAC address on the local network.
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