WorksheetsTroubleshooting and the Future of Networking
Total questions: 16
Worksheet time: 8mins
While in an interactive nslookup session, you'd use the ______ keyword to change the DNS server you're using.
server
client
FQDN
DNS
The IPv6 loopback address is
127.0.0.1
0000:0000:0000:0000:0000:0000:0000:0000
0000:0000:0000:0000:0000:0000:0000:0001
Following rules of compaction, the IPv6 address 2001:0db8:0000:0000:0000:ff00:0012:3456 could also be written as _______.
21:db8::ff:12:3456
2001:db8::ff00:12:3456
::1
The equivalent of the TTL field in an IPv4 header is known as the ______ field in an IPv6 header.
hop limit
traffic class
next header
flow label
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?
ECHO REPLY
TTL
ECHO REQUEST
ICMP
A tech uses the netcat tool on a Linux system. Of the choices, which has proper syntax?
nc -v 80
nc google.com 80
nc google.com
The nc command requires that a host and a port are included.
127.0.0.1
192.168.1.1
1.2.3.4
Which option is NOT provided with cloud storage?
Physical hardware
Availability
Security
Accessibility
How many zeros are found at the beginning of an Internet Protocol (IP) v6 address that correlate to a v4 address?
32
80
128
40
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?
-z
-v
n/a
-Port
When troubleshooting Domain Name System (DNS) problems, which helpful feature do public servers usually support?
Paths between nodes
ICMP echo requests
Port connectivity
Virtualization services
A company runs sensitive technologies locally, while entrusting less-sensitive technologies to a broader user base. Which cloud delivery model is being used?
Community
Hybrid
Public
Private
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?
Echo request Network address translation
Private tunnel
Name server lookup
Network address translation
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.
gateway address
port number
round-trip time
message byte size
What size is an Internet Protocol (IP) v6 payload field?
32-bit
16-bit
20-bit
8-bit
The ability for a protocol or program to determine that something went wrong is known as
redundancy
data verification
error detection
data resilience
