Refer to the show command exhibit.
Which statement is true?
Answer : B
To display information about the current configuration session (target configuration), use the show configuration command in any configuration mode. show configuration [merge] [running]
When is a route-policy configuration needed on a Cisco IOS XR router using RPL?
Answer : B
Which IOS Software solution is used for transporting RFC 1918 networks via IPSec + GRE
VPNs over the internet?
Answer : A
What are three common problems related to sessions not establishing between iBGP neighbors? (Choose three.)
Answer : B,D,E
What package provides the software for the route processor in the IOS XE Software?
Answer : D
Which two statements about carrier-grade NAT are true? (Choose two.)
Answer : A,B
Carrier Grade NAT Overview -
Carrier Grade Network Address Translation (CGN) is a large scale NAT that is capable of providing private IPv4 to public IPv4 translation in the order of millions of translations to support several hundred thousand subscribers and bandwidth throughput of at least 10
CGN is a workable solution to the IPv4 address depletion problem while offering a way for service provider subscribers and content providers to implement a graceful transition to
IPv6. CGN employs network address and port translation (NAPT) methods to aggregate many private IP addresses into fewer public IPv4 addresses. For example, a single public
IPv4 address with a pool of 32 K port numbers supports 320 individual private IP subscribers assuming each subscriber requires 100 ports (for example, each TCP connection needs one port number).
A CGN requires IPv6 to assist with the transition from IPv4 to IPv6.
Which BGP attribute is also used for loop prevention?
Answer : D
As RFC 4271 says, "AS loop detection is done by scanning the full AS path (as specified in the AS_PATH attribute), and checking that the autonomous system number of the local system does not appear in the AS path".
Which IP addresses are matched by the permit 192.168.80.64 0.0.0.15 access-list entry?
Answer : E
Which two statements about NAT64 are true? (Choose two.)
Answer : C,E
All viable translation scenarios are supported by NAT64, and therefore NAT64 is becoming the most sought translation technology. AFT using NAT64 technology can be achieved by either stateless or stateful means:
Stateless NAT64, defined in RFC 6145, is a translation mechanism for algorithmically mapping IPv6 addresses to IPv4 addresses, and IPv4 addresses to IPv6 addresses. Like
NAT44, it does not maintain any bindings or session state while performing translation, and it supports both IPv6-initiated and IPv4-initiated communications.
Stateful NAT64, defined in RFC 6146, is a stateful translation mechanism for translating
IPv6 addresses to IPv4 addresses, and IPv4 addresses to IPv6 addresses. Like NAT44, it is called stateful because it creates or modifies bindings or session state while performing translation. It supports both IPv6-initiated and IPv4-initiated communications using static or manual mappings.
DNS64, an optional component defined in RFC 6147, when used in conjunction with
NAT64, would trick the IPv6 hosts into thinking that the IPv4 destination as an IPv6 address, by synthesizing AAAA (quad A) resource records from A resource records.
You want to configure HSRP between a Cisco IOS and a Cisco IOS XR router for the
192.0.2.0/24 subnet. Half of the PCs on the 192.0.2.0/24 subnet are configured to use
192.0.2.1 as the default gateway, and the other half of the PCs are configured to use
192.0.2.254 as the default gateway. The intent is to load balance the traffic across both routers.
Which two IOS and IOS XR configurations are needed? (Choose two.)
Answer : A,D
On the Cisco ME 3400 switch, spanning tree is enabled by default on which type of switch port?
Answer : C
On Cisco IOS XR software, what are the four valid address-family configuration command options in static route configuration mode? (Choose four.)
Answer : A,B,C,D
Which statement about Cisco IOS XE software is true?
Answer : B
The IOS feature set for routing and switching is unmatched in the industry, delivering functionality required for business critical applications. Preserving these advantages of IOS to our customers is critical for Cisco. IOS XE retains the exact same look and feel of IOS, while providing enhanced future-proofing and improved functionality. In IOS XE, IOS 15.0 runs as a single daemon within a modern Linux operating system. Additional system functions now run as additional, separate processes in the host OS environment. The operation, support and management of IOS XE does not require re-training from classic