Barco Networking Training

Physical

100

Name 2 examples of the Physical layer.

Twisted Pair Copper,

Fiber,

Physical NIC card

200

True or False. There is no interpretation at this level, a stream of 1’s and 0’s are put into a form convenient for transmission.

True

300

What is the maximum cable bandwidth supported by Cat6 cable? (not CAT 6A)

Gigabit Ethernet

400

What device is can be described as:

- multiport repeater

- amplifies and regenerates digital signal

- doesn’t examine any traffic

Hub

500

What cable would you use if you are dealing with a lot of Electromagnetic Interference?

Fiber

Data Link

100

What unique address is used at the data link layer to send frames to different hosts?

MAC

200

How many digits are in a MAC address?

12-digits

300

On Windows, how do you find your MAC address?

ipconfig /all

400

How many bits are in a MAC address?

48

500

What is the purpose of a VLAN?

Divides switch into multiple broadcast domains

Network

100

How many octets are in an IP address?

4

200

What is the address range for a Class D address?

224.0.0.0-239.255.255.255

300

What is the corresponding subnet mask in CIDR (/) notation for 255.0.0.0?

/8

400

What must you enable on a layer 3 device to handle IGMP requests and queries on a single network?

IGMP Querier

500

What protocol must I enable on my routers to be able to route multicast between networks?

PIM

Transport

100

What are the two most popular transport protocols?

TCP and UDP

200

What is the reserved port for SSH?

TCP/22

300

What is the difference between TCP and UDP?

TCP is reliable, in-order and connection oriented

UDP is best-effort, and FAST!, connectionless

400

What is the difference between an ephemeral and non-ephemeral port?

Non-Ephemeral ports will not change. I.E. server ports

500

What values are typically required when writing a firewall rule?

Source, Dest, Dest Port, Protocol

Application

100

What is the security hazard with using Telnet? 

Everything is in plain-text

200

What type of communication is RTSP? (unicast, multicast, broadcast)

unicast

300

What is the reserved port for RTSP?

TCP/554

400

What is the first place your computer checks when resolving a hostname to an IP address?

hosts file

500

Name 3 of the RTSP packets that are sent when setting up and tearing down a stream?

Describe, Setup, Play, Pause, Teardown