Things I probably need to remember for the exam

Question 1

SONET

OC3

OC12

Answer 1

Synchronous Optical network

Fiber optic cabling across the boad

OC3 is equivelent to 100 T1’s

Question 2

ATM

Answer 2

Asynchronous Transfer Mode

Question 3

ISDN

Answer 3

Integrated Services Digital Network

BRI -
Basic Rate Interface (2B+D)

• Two 64 kbit/s bearer (B) channels
• One 16 kbit/s signaling (D) channel
• PRI - Primary Rate Interface (23B+D)
• T1 – 23B + D
• E1 – 30B + D + alarm channel

Question 4

PPPoE

Answer 4

Encapsulate point-to-point protocol
over Ethernet
• Common on DSL networks
• Many similarities to dial-up networking

Question 5

Cable modem

• DOCSIS

Answer 5

Data Over Cable
Service Interface Specification)

• 4 Mbit/s through 100 Mbit/s

Question 6

Coaxial Cabling

Answer 6

RG-59 - Short-distance video

• RG-6 - Television, digital cable Internet

Question 7

Optical Fiber Cable Times (5)

Answer 7

ST - Straight tip
SC - Subscriber connector
FC - Field assembly connector
LC - Lucent connector
MT-RJ - Mechanical transfer registered Jack

Question 8

MMF

SMF

Answer 8

Multi-mode for short range

Single-mode for long

Question 9

Router Protocols (5)

Answer 9

Link state routing protocol - OSPF, IS-IS

VRRP - Virtual router redundancy protocol -

HSRP - Hot standby router protocol

Distance-Vector Routing Protocol - Rip Ripv2

Hybrid routing protocol - EIGRP