Binary Conversions
IPv4 Classes
CIDR Subnets
Definitions
Ports
Ethernet Frame
Cables
Hubs Vs Switches
Simplex and Duplex
Potpourri
100
What is the decimal form of: 00000111
7
100
This class has a range between 0.0.0.0 and 127.255.255.255
Class A
100
What's the subnet mask for a /24 network?
255.255.255.0
100
What does CIDR stand for?
Classless Interdomain Routing
100
What protocol is port 80 related to?
HTTP!
100
Which of the following is NOT part of the Ethernet Frame?
FCS
Source IP Address
Source MAC Address
Data Type
Source IP Address.
Frames operate at Level 2, while IP Addressing happens at level 3.
100
What type of connector is used for terminating a UTP cable?
RJ-45
100
True or False: Hubs and Switches are visually very different.
FALSE!!! They can look nearly identical!
100
Which of the following is an example full duplex?
Using a CB Radio
Talking on the Phone
Receiving a Text
Pinging a Device
Talking on the Phone
100
True or False: Collisions are expected in a network
True! And we've got Collision Detection and Domains to handle them! They're much less common in Domains, but still shouldn't pose issues in a correctly built network.
200
What is the decimal form of 11100000
220
200
This class has a range between 240.0.0.0 and 255.255.255.255
Class E
200
What's the subnet mask for a /23 network?
255.255.254.0
200
What does VLSM stand for?
Variable Length Subnet Masking
200
What ports does FTP utilize?
20 and 21
200
What does FCS Stand for? What does it do?
Frame Check Sequence, ensures all data in frame made it safely.
200
What's the highest fire rating for UTP cables?
Plenum!
200
When I receive a frame, I create send a copy to each device connected to me. Am I a hub or a switch?
Hub!
200
Which of the following standards applies to Fiber Optics?
100Bast-T
1000Base-T
10Base-T
1000Base-LX
1000Base-LX
200
What is 100Base-T?
100 Megabit Ethernet Standard
300
What is the decimal form of 10101101?
173
300
This class has a range between 128.0.0.0 and 191.255.255.255
Class B
300
What's the subnet mask for a /8 network?
255.0.0.0
300
What is ARP?
Address Resolution Protocol (ARP) is a procedure for mapping a dynamic IP address to a permanent physical machine address in a local area network (LAN).
300
What port does RDP utilize?
Port 3389
300
True or False: The first piece of an Ethernet frame is the Preamble
True! Just like the Constitution!
300
What's the difference between multimode and single mode fiber optic cables?
Multimode uses LED vs Single mode uses Laser
300
I keep track of MAC addresses to send data only to the desired device, am I a hub or a switch?
A Switch!
300
Which of the following is a half-duplex example?
Talking on the Phone
A Pneumatic Bank tube
A guy with a megaphone shouting from a building?
A pneumatic bank tube!
300
What is a plenum? Need both parts of the answer for full points.
A plenum is a space between a drop ceiling and the actual ceiling or the space between a raised floor and the actual floor.
400
What is the binary form of 132?
10000100
400
This class has a range between 224.0.0.0 and 239.255.255.255
Class D
400
What's the subnet mask for a /32 network?
255.255.255.255
400
What is NAT?
NAT stands for network address translation. It’s a way to map multiple private addresses inside a local network to a public IP address before transferring the information onto the internet.
400
What uses does port 110?
POP3.
400
How many bits are in a Source MAC address?
48 Bits!
400
What's the order of cables for 568B standard?
OrW, OR, GrW, B, BW, G, BrW, Br
400
Carrier Sense multiple access/collision detection (CSMA/CS) is used in...
Hubs
400
Which of the following is a simplex example?
Talking on the Phone
A Pneumatic Bank tube
A guy with a megaphone shouting from a building
Megaphone guy
400
What is the Broadcast address?
FF:FF:FF:FF:FF:FF
500
What is the binary form of 256?
It doesn't exist! 255 is the highest value we can express in 8-bit binary
500
This class has a range between 192.0.0.0 and 223.255.255.255
Class C
500
What's the subnet mask for a /27 network?
255.255.255.224
500
Define OSPF.
Open Shortest Path First (OSPF) is a link-state routing protocol that was developed for IP networks and is based on the Shortest Path First (SPF) algorithm. OSPF is an Interior Gateway Protocol (IGP).
500
What port does DNS utilize?
Port 53
500
What is Ether Type?
Another name for the Data Type section of the Ethernet Frame
500
What kind of connector is this?
LC Fiber optic connector
500
What is a maintenance port on a switch?
A port that gets a copy of all traffic taking place on the switch.
500
Are fiber optic cables simplex, half-duplex, or duplex?
This is a trick question. Depends on the type of fiber cable, is it single mode or multimode?
500
What is 10Base-T?
An Ethernet standard that transmits at 10 Mbps over twisted wire pairs (telephone wire)