Deck 3: Fundamentals of Wans and IP Routing

Question 1

Which of the following protocols are used to establish a point-to-point serial link?

A) H.323
B) HDLC
C) PPP
D) PPTP
E) TCP
F) UDP
G) IP

Answer 1

HDLC
PPP

Question 2

What is the physical rate of transmission of a T1 leased line?

A) 10 Mbps
B) 100 Mbps
C) 44.455 Mbps
D) 1.544 Mbps
E) 2 Mbps
F) 5.455 Mbps

Answer 2

1.544 Mbps

Question 3

What is the difference between the ISO version of HDLC and the Cisco version of HDLC that is used, by default, on all serial interfaces?

A) Type field
B) Protocol field
C) Authentication support
D) Optimized header
E) Encryption support

Answer 3

Type field

Question 4

Which technology is commonly implemented inside a service provider's (SP) network and provides an Ethernet point-to-point connection between customer devices?

A) eBGP
B) EoMPLS
C) Leased line
D) Frame Relay
E) ATM

Question 5

What protocol standard is used when utilizing an Ethernet emulation point-to-point link?

A) IEEE 802.11
B) IEEE 802.5
C) IEEE 802.3
D) ISO 4507
E) ISO 1431

Question 6

The Internet is essentially one big ________ network.

A) OSI
B) iBGP
C) EGP
D) TCP/IP
E) Ethernet

Question 7

Which HDLC field is equivalent to the preamble in Ethernet?

A) Flag
B) Address
C) Control
D) FCS

Question 8

Which of the following fields in HDLC does not exist in Ethernet and is typically considered outmoded for modern links between routers?

A) Flag
B) Address
C) Control
D) FCS