Free Practice Quiz Question List

4 Network Configuration Problems Online Quiz Questions

Use this free practice quiz with 20 questions to review 4 Network Configuration Problems, test your knowledge, and prepare for your next test or exam.

20 questions

Choose one

1 point

A client intended to use 192.168.10.25/24 is mistakenly configured with a /16 prefix. What behavior could this misconfiguration cause when it tries to reach another device at 192.168.20.8?

A
The client will classify all 192.168.x.x addresses as remote and send them to its gateway.
B
The client may treat some 192.168.x.x addresses as local and try to contact them directly.
C
The client will be unable to communicate with any device in its own subnet.
D
The client will automatically correct the mask when it contacts the gateway.

Choose one

1 point

A user can open a service by its IP address but not by its host name. Which troubleshooting step best addresses this symptom?

A
Replace the client’s subnet mask with a wider prefix.
B
Disable the default gateway so the client queries DNS locally.
C
Check the configured DNS servers and suffix, then investigate name resolution and any suspected stale cache.
D
Change the switch port to a trunk because DNS names cannot cross access VLANs.

Choose one

1 point

A router has a usable route toward a remote network, but connections from a client time out after packets reach that network. Which routing check is especially important?

A
Check whether the destination network has a route back to the client’s subnet.
B
Change the client’s DNS suffix to match the destination host name.
C
Renew the client’s DHCP lease even if its current settings are correct.
D
Configure the destination network to use the client’s default gateway.

Choose all

1 point

A client expected to use DHCP fails to renew its lease. Which areas are appropriate to investigate? Select all that apply.

A
Check that DHCP is enabled on the intended adapter and that the correct VLAN and link are in use.
B
Assume the DNS cache is the cause and clear it before checking DHCP.
C
Investigate DHCP server or scope availability and address availability.
D
Check for a required DHCP relay between the client subnet and the server.

Choose all

1 point

Clients in the same VLAN communicate when attached to one switch but not when communication crosses an inter-switch link. Which checks are relevant to the trunk path? Select all that apply.

A
Verify that the required VLAN is allowed on each relevant trunk.
B
Compare trunk settings at both ends of the link.
C
Replace every trunk with an access port, regardless of the network design.
D
Check that native VLAN settings match at both ends when a native VLAN is used.

True or false

1 point

A client’s ping to its default gateway fails. This proves that the gateway is unreachable for all network traffic.

A
True
B
False

True or false

1 point

If an intermediate hop does not respond in a Windows tracert result, that alone proves the hop is broken.

A
True
B
False

Written response

1 point

Which Windows command displays the client’s route table? Enter the command.

Written response

1 point

What is the route called that handles destinations without a more specific matching route?

Fill in the blank

1 point

To inspect a Windows client’s routing table, run .

Fill in the blank

1 point

To test name resolution by querying the configured DNS server, use .

Open ended

1 point

A user reports that one computer cannot access a service on another network. Describe a practical diagnostic sequence that uses the observed connectivity results to decide what to check next, and explain how to make and verify a correction.

Choose one

1 point

A client has an address from an unexpected subnet and cannot reach the gateway it is supposed to use. Which first switch-side check is most appropriate?

A
Change the client’s DNS suffix first because VLAN assignment affects only name resolution.
B
Check that the switch port is assigned to the intended access VLAN, then verify the client’s subnet and expected gateway.
C
Configure the client port as a trunk in every case so it can reach all VLANs.
D
Remove the gateway because clients in different VLANs communicate directly at Layer 2.

True or false

1 point

A Windows client has an IPv4 address beginning with 169.254. This address proves the client has working Internet access because it is a private address.

A
True
B
False

Choose one

1 point

A Windows client cannot reach a network resource. Which command displays detailed adapter settings, including the IP address, gateway, DHCP status, and DNS servers?

A
ipconfig /all
B
route print
C
nslookup
D
tracert

Choose one

1 point

A client is configured with IP address 192.168.10.25/24. Which network does this configuration place it in?

A
192.168.10.0/24
B
192.168.10.25/24
C
192.168.0.0/16
D
192.168.10.1/24

Choose one

1 point

A Windows client expected to use DHCP has a 169.254.x.x IPv4 address. What is the most appropriate next diagnostic step?

A
Immediately replace the address with a static public IPv4 address.
B
Check the link, VLAN, DHCP availability, and relay path.
C
Flush the DNS cache and leave the other settings unchanged.
D
Change the default route before checking the client’s network.

Written response

1 point

Which Windows command can you use to compare a client's adapter settings with those of a known-working device on the same network?

Choose one

1 point

A client can reach an application by IP address but not by its host name. Which client settings are most relevant to check first?

A
The client’s subnet mask and switch-port speed
B
The gateway’s interface metric only
C
The DNS server addresses and DNS suffix
D
The DHCP lease duration only

Written response

1 point

Which Windows command can show the responding hops along a path to a destination?

4 Network Configuration Problems Online Quiz Questions

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