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Cisco 640-821 Exam Syllabus Topics:

Cisco Introduction to Cisco Networking Technologies Sample Questions:

1. What will cause a router to enter setup mode? (Choose two.)

A) The setup command was issued from the privileged mode prompt.
B) The IOS is corrupt.
C) The IOS is missing.
D) The configuration register is set to 0x2100.
E) The configuration file is missing in NVRAM.
F) Boot system commands are misconfigured in the running-configuration.

2. Which OSI layer header contains the address of a destination host that is on another network?

A) physical
B) network
C) session
D) transport
E) data link
F) application

3. If a host on a network has the address 172.16.45.14/30, what is the address of the subnetwork to which this host belongs?

A) 172.16.45.4
B) 172.16.45.12
C) 172.16.45.16
D) 172.16.45.0
E) 172.16.45.8

4. Which types of cables are required to interconnect the devices shown in the graphic?
(Choose three.)

A) USB cable
B) rollover cable
C) straight-through cable
D) crossover cable
E) V.35 cable
F) RJ-11 cable

5. Which Layer 4 protocol is used for a Telnet connection?

A) TCP
B) ICMP
C) UDP
D) DNS
E) IP

Solutions: