Course 2 - Week 6 - Test ?/?

Which two tools function similar to traceroute? Check all that apply.

mtr and pathping

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

nc google.com 80 [Verifying connectivity module]!!

A DNS resolver tool available on all major desktop operating systems is __________.

nslookup

You need to find the Internet Protocol (IP) address for a website. Which command do you use on a Windows system?

nslookup

When registering a new domain name, either the registrar's servers or self-owned servers can be used as name servers. What function will the name servers provide for the domain?

Authoritative, error recovery, or Domain transfer? --("digging into DNS" module)--

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.

(Round-trip time) and (Message byte size)

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?

-v

The IPv6 loopback address is _____.

0000:0000:0000:0000:0000:0000:0000:0001 [Refer to lesson 3]!!

Which of these addresses is an Internet Protocol (IP) v4 loopback address?

127.0.0.1

Which addresses represent valid local loopback addresses? Check all that apply.

127.0.0.1 and ??

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

16-bit

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

2001:db8::ff00:3456

Unlike Linux and Mac systems, on a Windows system, the ping command sends how many echo requests?

4

One of Level 3's public DNS servers is ____________.

4.2.2.3

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

40, 80 or 128??

For all IPv6 addresses, the network ID is always the first ______ bits.

64

Internet Protocol (IP) v6 addresses are written out in which format?

8 groups of 12 bits, 6 groups of 32 bits, or 8 groups of 16 bits?? [IPv6 module]!!

One of Google's public DNS servers is 8.8.8.8. The other one is ______.

8.8.4.4.

The IPV4 mapped address space within IPv6 always starts with _______ zeroes.

80 or 128??

The IPV4 mapped address space within IPv6 always starts with _______ zeroes.

? (not 32)

Most public Domain Name Servers (DNS) are available globally through which technology?

Anycast

What is the name of the provision of services based around hardware virtualization?

Cloud computing

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

Community, Private, or Hybrid ? --( "The cloud" module)--

An organization responsible for assigning individual domain names to other organizations or individuals is known as a(n) ______.

DNS registrar

For Internet Protocol (IP) v6 traffic to travel on an IP v4 network, which two technologies are used? Check all that apply.

Datagrams and... Packets and/or IPv6 tunnels?

The ping utility sends what message type?

Echo request

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 or Private tunnel?? [Verifying Connectivity module]!!

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

Error detection

A Cyclical Redundancy Check (CRC) is an example of what type of built-in protocol mechanism? Check all that apply.

Error detection and Error recovery -- (Check "Troubleshooting and the Future of Networking" videos)--

Which Internet Protocol (IP) v6 header field is used to determine the quality of service level for a datagram?

Flow label -- ( IPv6 videos ) --

Which Internet Protocol (IP) v6 field is identical in purpose to the TTL field in an IPv4 header?

Hop limit

The organization responsible for DNS at a global level is ________.

ICANN

The protocol used to communicate network errors is known as __________.

ICMP

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

ICMP echo requests or Port connectivity?? [Digging into DNS module]!!

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?

ICMP?? [Verifying Connectivity module]!!

ICMP stands for ________.

Internet Control Message Protocol

Traceroute uses UDP packets on which of the following operating systems? Check all that apply

Mac and Linux

As an IT decision maker, you plan to satisfy business needs by using software as a service. Which option do you deploy?

Office 365, Virtual firewall or Windows Server 2019 ??

Which option is NOT provided with cloud storage?

PHysical hardware

A web developer requires an environment to perform application testing. Which cloud service type does the developer choose to use?

Platform as a Service [The cloud module]!!

PaaS stands for ______.

Platform as a service

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

Server --(module 3?)--

During a traceroute, which action does a router perform to the value in the Time To Live (TTL) field?

Subtraction

On Windows, one of the tools you can use to verify connectivity to a specific port is ________.

Test-NetConnection

You need to prove ownership of a domain name for an upcoming transfer to a new registrar. Which Domain Name System (DNS) record do you create to prove ownership?

Text (TXT)

The first field of an Internet Control Message Protocol (ICMP) packet specifies the message type. Which choices represent message type examples? Check all that apply.

Time exceeded and Destination unreachable

You would like to use the nslookup command in interactive mode. How is the mode accessed?

by providing the command with no options ?? [Digging Into DNS module]!!

When you send an echo request message with the ping program, a successful attempt will return a(n) ______ message.

echo reply

With virtualization, a single physical machine, called a host, can run many individual virtual instances, called ______.

guests or servers? -- (lesson 4 of course 2?) ---

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

hop limit

IPv6 addresses beginning with FE80:: are used for ______.

public multicast, Network Address Translation, or link local unicast ??

When shortening an Internet Protocol (IP) v6 address, which two rules are used? Check all that apply.

replace groups of zeros with colons and removing all leading zeros

The Linux and macOS program traceroute is known by a slightly different name on Windows. It's referred to as ______.

tracert