Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
What device is used to separate subnets?
|
a router
|
|
What are the three default subnet masks?
|
255.0.0.0 (Class A), 255.255.0.0 (Class B), 255.255.255.0 (Class C)
|
|
What is the first octet range for Class A networks?
|
1-127
|
|
What is the first octet range for Class B networks?
|
129-191
|
|
What is the first octet range for class C networks?
|
192-223
|
|
What is the maximum number of Class A networks available?
|
127
|
|
What is the maximum number of Class B networks available?
|
16,383
|
|
What is the maximum number of Class C networks available?
|
2,097,151
|
|
What three address ranges are reserved for private networks?
|
10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16
|
|
What standard defines Ethernet?
|
IEEE 802.3
|
|
Who originally develeoped Ehthernet?
|
Digital, Intel, and Xerox (DIX)
|
|
What does Ethernet do when it detects a collision
|
waits a random period of time and resends
|
|
When not using auto-detect, how should a NIC be configured when connected to a hub?
|
half-duplex
|
|
What media access control method does Ethernet use?
|
Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
|
|
What is the maximum packet size for Ethernet?
|
1518 bytes
|
|
What standard defines Fast Ethernet?
|
802.3u
|
|
What is the maximum speed of Fast Ethernet?
|
100 Mbps
|
|
What cable type is required for 10BaseT?
|
Cat3
|
|
What are the three types of Fast Ethernet?
|
100BaseTX, 100BaseFX, and 100BaseT4
|
|
What cable type does 100BaseTX require?
|
Cat5
|
|
What cable type does 100BaseFX require?
|
fiber optic
|
|
What cable type does 100BaseT4 require?
|
Cat3 (uses 2 extra wires)
|
|
What standard defines Gigabit Ethernet?
|
IEEE 802.3z
|
|
What is the 5-4-3 rule?
|
Ethernet can support a maximum of 5 segments connected by 4 repeaters with nodes on 3 segments
|
|
What is a bridge?
|
a Layer 2 device that connects different or same-type networks
|
|
Does a bridge allow broadcasts?
|
yes
|
|
Does a bridge forward traffic?
|
not if the destination segment is the same as the originating segment
|
|
How much latency does a bridge introduce?
|
20-30%
|
|
What do gateways do?
|
enable communications between different protocols, data types, and environments
|
|
What are non-root ports on non-root bridges considered?
|
nondesignated- they neither send nor receive traffic
|
|
What mode are nondesignated ports in?
|
blocking mode- they neither send nor receive traffic
|