Microsoft Networking Essentials Exam Quality Control & Assurance 4

Question 1

Which Windows Performance Monitor counter is most useful for monitoring network quality?

Accepted Answer

Network Interface\Packets/sec

Answer

Processor\% Processor Time

Answer

Memory\Available Bytes

Answer

PhysicalDisk\Disk Reads/sec

Question 2

What is the function of a network protocol analyzer in quality assurance?

Accepted Answer

Capturing and inspecting packet data to diagnose problems

Answer

Assigning IP addresses to network hosts

Answer

Blocking malicious network traffic

Answer

Routing packets between network segments

Question 3

A technician suspects a duplex mismatch between a switch and a server NIC. What symptom would confirm this?

Accepted Answer

High late collisions and poor throughput

Answer

IP address conflicts on the subnet

Answer

DNS resolution failures

Answer

DHCP lease exhaustion

Question 4

Which IP header field is used to prevent packets from circulating indefinitely on a network?

Accepted Answer

TTL (Time to Live)

Answer

Protocol

Answer

TOS (Type of Service)

Answer

Identification

Question 5

What does the 'netstat -e' command display that is useful for quality assurance?

Accepted Answer

Ethernet statistics including errors and discards

Answer

Active TCP connections and listening ports

Answer

Current routing table entries

Answer

DNS cache contents

Question 6

In wireless networking quality assurance, what does SNR (Signal-to-Noise Ratio) measure?

Accepted Answer

The difference between signal strength and background noise

Answer

The total number of connected wireless clients

Answer

The encryption strength of the wireless signal

Answer

The maximum distance from the access point

Question 7

Which approach best ensures ongoing network quality after initial deployment?

Accepted Answer

Continuous monitoring with defined thresholds and alerts

Answer

Replacing all hardware every six months

Answer

Disabling unused network features permanently

Answer

Running manual ping tests weekly