Physical
Name 2 examples of the Physical layer.
Twisted Pair Copper,
Fiber,
Physical NIC card
What unique address is used at the data link layer to send frames to different hosts?
MAC
How many octets are in an IP address?
What are the two most popular transport protocols?
TCP and UDP
What is the security hazard with using Telnet?
Everything is in plain-text
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
How many digits are in a MAC address?
12-digits
What is the address range for a Class D address?
224.0.0.0-239.255.255.255
What is the reserved port for SSH?
What type of communication is RTSP? (unicast, multicast, broadcast)
unicast
What is the maximum cable bandwidth supported by Cat6 cable? (not CAT 6A)
Gigabit Ethernet
On Windows, how do you find your MAC address?
ipconfig /all
What is the corresponding subnet mask in CIDR (/) notation for 255.0.0.0?
/8
What is the difference between TCP and UDP?
TCP is reliable, in-order and connection oriented
UDP is best-effort, and FAST!, connectionless
What is the reserved port for RTSP?
TCP/554
What device is can be described as:
- multiport repeater
- amplifies and regenerates digital signal
- doesn’t examine any traffic
Hub
How many bits are in a MAC address?
48
What must you enable on a layer 3 device to handle IGMP requests and queries on a single network?
IGMP Querier
What is the difference between an ephemeral and non-ephemeral port?
What is the first place your computer checks when resolving a hostname to an IP address?
hosts file
What cable would you use if you are dealing with a lot of Electromagnetic Interference?
Fiber
What is the purpose of a VLAN?
Divides switch into multiple broadcast domains
What protocol must I enable on my routers to be able to route multicast between networks?
PIM
What values are typically required when writing a firewall rule?
Source, Dest, Dest Port, Protocol
Name 3 of the RTSP packets that are sent when setting up and tearing down a stream?
Describe, Setup, Play, Pause, Teardown