Which of the following is the least effective power loss protection for computer systems?
Right Answer
A surge protector only defends against sudden voltage spikes, not power loss. While useful for preventing hardware damage, it doesn’t keep a system running during an outage. In contrast, devices like UPS units or generators provide backup power. Therefore, it’s the least effective for actual power loss scenarios.
Question 2/6
Which of the following utilities produced the given output?
Right Answer
ifconfig is a command-line utility used to display and configure network interfaces on Unix-like systems. The output typically includes IP addresses, subnet masks, and MAC addresses. This helps administrators verify or troubleshoot network configurations. It's often replaced by ip in modern Linux systems but still widely used.
Question 3/6
Users report that the network is down due to a routing loop. What should be done next?
Right Answer
After identifying a routing loop, the next best step is to assess if the issue can be resolved internally or if it requires escalation. Escalating ensures the right personnel or team addresses the issue efficiently. Immediate fixes without a plan or the right expertise can worsen the situation. Assessing next steps prevents rushed decisions and ensures proper resolution.
Question 4/6
Which of the following devices accepts incoming client requests and distributes those requests to specific servers?
Right Answer
A load balancer manages traffic by distributing client requests across multiple servers. This helps prevent any one server from becoming overwhelmed. It improves availability, redundancy, and response times. Load balancers are essential for handling large-scale web traffic.
Question 5/6
A new assistant network administrator replaced a defective patch cable but caused a network outage. What should be done next?
Right Answer
Crossover cables are used to connect switches directly to each other. Using the wrong type of cable or incorrect port configuration can cause a network loop or disconnect. Replacing inter-switch cables with the correct crossover type can restore proper connectivity. This is a common fix for switch-to-switch connection issues.
Question 6/6
Which type of switch optimizes network performance using ASIC to perform switching at wire speed?
Right Answer
A multilayer switch uses ASICs (Application-Specific Integrated Circuits) to switch packets at wire speed while also supporting Layer 3 routing functions. This makes them highly efficient and ideal for performance-critical environments. They combine the speed of Layer 2 switching with the capabilities of a router. These switches are common in enterprise networks for optimized traffic flow.