Random Cards

Question 1

How do CAT5 and CAT6 cables compare?

Answer 1

Question 2

What kind of cable is less susceptible to EMI (electromagnetic interference), does not sacrifice performance and is most cost-effective?

-Coaxial
-STP CAT6
-UTP CAT5e
-Multimode fiber

Answer 2

STP Cat6

• STP stands for shielded twisted pair
• UTP wouldn’t work for EMI because its unshielded, hence the “U”
  -Coaxial is immune to EMI, but its outdated, thus sacrificing performance
  -Multimode wouldn’t be cost-effective though it is immune to EMI

Question 3

Which of the following are fiber cable connectors?

-ST
-RJ-45
-RJ-11
-SC
-LC
-BNC

Answer 3

Only the options with two letters are fiber connectors.

ST, SC, LC

Question 4

Which of the following cloud computing concepts allows for scalability?

-On-demand
-Metered
-Rapid elasticity
-Resource pooling

Answer 4

Rapid Elasticity

-Automatically increases and decreases resources as needed
-You can cap the resources to control costs
-Resource pooling is incorrect because this is a sharing of resources with others in the cloud

Question 5

What tool can verify proper grounding?

Answer 5

Multimeter

Question 6

What kind of solution can be described as a web-based application purchased for a monthly fee?

-IaaS (infrastructure)
-SaaS (software)
-PaaS (platform)
-DaaS (desktop)

Answer 6

SaaS, Software as a service

-The software is installed somewhere else by the client provider which the user can view over the internet
-One example is Microsoft 365 which can be accessed in a browser for a monthly fee

-PaaS is incorrect. Examples of this are a cloud AD like Azure, or having a SQL DB in the cloud
-DaaS is incorrect. The desktop runs in the cloud. Though its similar to IaaS, DaaS more specific to virtual machines whereas IaaS is not limited to VMs

Question 7

Which port should be blocked to prevent remote logins to a server?

-80
-21
-23
-443

Answer 7

Port 23 which is Telnet

-Port 80 is HTTP, the default network port
-Port 21 is FTP
-Port 443 is HTTPS, encrypted web browsing

Question 8

What does the command “tracert” do?

Answer 8

Determines the route packets take to the destination (shows hops)

Question 9

What does an APIPA address look like?

Answer 9

169.254.213.235

APIPA addresses always start with 169.254. This is the IP automatically assigned when a DHCP server isn’t available. It’s actually a placeholder of sorts, not actually a true IP address.

*If you have an APIPA address, you do not have an IP address! You can request an IP address with ipconfig /renew. /release will not work due to the lack of IP address; it would simply let go of that current address.

Question 10

What is a loopback IP?

Answer 10

127.0.0.1 It will always start with 127.

–It allows a device to send a receive its own packets.
–Serves as a reliable method of testing to diagnose network issues by separating them. This helps determine whether the problem comes from the tool itself or outside factors.

Question 11

How long can an ethernet cable be without needing a repeater?

Answer 11

100m / 328 ft

Question 12

Which wireless standard is only capable of 5GHz?

Answer 12

802.11a is only 5Ghz.

-This tends to have less interference, as many/most things, including Bluetooth, run at 2.4GHz.
-802.11n can run both 2.4GHz and 5GHz.
-802.11b & g run 2.4GHz.

Question 13

What is a plenum cable?

Answer 13

A fire-resistant cable that doesn’t give off toxic gases.

Question 14

Which networking device can use VLANs to secure networks?

Answer 14

-A managed switch can allow connected devices to be on different virtual networks.

Question 15

What connector does POTS use?

Answer 15

-These used to be plugged into modems.

Question 16

What’s an example of a coaxial cable type?

Answer 16

RG-59

–They all start with RG.