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Troubleshooting and the Future of Networking

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

While in an interactive nslookup session, you'd use the ______ keyword to change the DNS server you're using.

a)

server

b)

client

c)

FQDN

d)

DNS

2.

The IPv6 loopback address is

a)

127.0.0.1

b)

0000:0000:0000:0000:0000:0000:0000:0000

c)

0000:0000:0000:0000:0000:0000:0000:0001

3.

Following rules of compaction, the IPv6 address 2001:0db8:0000:0000:0000:ff00:0012:3456 could also be written as _______.

a)

21:db8::ff:12:3456

b)

2001:db8::ff00:12:3456

c)

::1

4.

The equivalent of the TTL field in an IPv4 header is known as the ______ field in an IPv6 header.

a)

hop limit

b)

traffic class

c)

next header

d)

flow label

5.

A support technician uses the ping utility on a system that is online, yet no response is received. What should be allowed through a firewall, for ping to operate correctly?

a)

ECHO REPLY

b)

TTL

c)

ECHO REQUEST

d)

ICMP

6.

A tech uses the netcat tool on a Linux system. Of the choices, which has proper syntax?

a)

nc -v 80

b)

nc google.com 80

c)

nc google.com

7.

The nc command requires that a host and a port are included.

a)

127.0.0.1

b)

192.168.1.1

c)

1.2.3.4

8.

Which option is NOT provided with cloud storage?

a)

Physical hardware

b)

Availability

c)

Security

d)

Accessibility

9.

How many zeros are found at the beginning of an Internet Protocol (IP) v6 address that correlate to a v4 address?

a)

32

b)

80

c)

128

d)

40

10.

When using the netcat command to test a network port, which option will provide output that is not useful for scripting, but is useful for the human eye?

a)

-z

b)

-v

c)

n/a

d)

-Port

11.

When troubleshooting Domain Name System (DNS) problems, which helpful feature do public servers usually support?

a)

Paths between nodes

b)

ICMP echo requests

c)

Port connectivity

d)

Virtualization services

12.

A company runs sensitive technologies locally, while entrusting less-sensitive technologies to a broader user base. Which cloud delivery model is being used?

a)

Community

b)

Hybrid

c)

Public

d)

Private

13.

You run the Test-NetConnection command on a Windows PC while only providing a host name. As a result, what default action does the command use?

a)

Echo request Network address translation

b)

Private tunnel

c)

Name server lookup

d)

Network address translation

14.

When the ping command is used, output is similar across operating systems. Which two values are displayed as part of the output? Check all that apply.

a)

gateway address

b)

port number

c)

round-trip time

d)

message byte size

15.

What size is an Internet Protocol (IP) v6 payload field?

a)

32-bit

b)

16-bit

c)

20-bit

d)

8-bit

16.

The ability for a protocol or program to determine that something went wrong is known as

a)

redundancy

b)

data verification

c)

error detection

d)

data resilience