Virtualization

Question 1

NFV

Answer 1

Network Functions Virtualization (virtual network hardware)

Question 2

CSR

Answer 2

Cisco Cloud Services Router E.G. (CSR 1000v)

Question 3

VRF

Answer 3

Virtual Routing and Forwarding - each interface can belong to exactly one VRF

Question 4

GRE

Answer 4

Generic Routing Encapsulation

Question 5

DMVPN

Answer 5

Dynamic Multipoint Virtual Private Network

Question 6

Where are VRF’s used

Answer 6

Providor edge routers (MPLS)

Question 7

MPLS

Answer 7

Multiprotocol Label Switching

Question 8

Steps to configure a VRF on a PE router

Answer 8

1) issue the ip vrf vrf-name command to name the VRF and enter VRF configuration mode.

2) Issue the rd route-distinguisher command

3) if BGP - route-target {export | import | both} route-target-ext-community command

4) ssociate the VRF with the appropriate Layer 3 interface by issuing the interface interface-id command, then issue the ip vrf forwarding vrf-name command

Question 9

Command to verify that VRF is configured and running

Answer 9

show ip vrf detail

Question 10

What are the two IPSEC algorythms?

Answer 10

AH - AUthentication Header
ESP - Encapsulating Security Payload (encryots data)

Question 11

What are the three IPSEC encryption methods?

Answer 11

Data Encryption Standard (DES)
Triple DES (3DES)
Advanced Encryption Standard (AES)

Question 12

What are the three Diffie-Hellman (DH) public key exchange methods?

Answer 12

DH1
DH2
DH5