Refer to the exhibit. If OSPF is running on this network, how does Router 2 handle traffic from Site B to 10.10.13.128/25 at Site A?
AIt sends packets out of interface Fa0/2 only.
BIt sends packets out of interface Fa0/1 only.
CIt cannot send packets to 10.10.13.128/25.
DIt load-balances traffic out of Fa0/1 and Fa0/2.
Correct Answer:C
Router2 does not have an entry for the subnet 10.10.13.128/25. It only has an entry for 10.10.13.0/25, which ranges from 10.10.13.0 to 10.10.13.127.
Q785. Security Fundamentals
When a site-to-site VPN is used, which protocol is responsible for the transport of user data?
AIKEv2
BIKEv1
CIPsec
DMD5
Correct Answer:C
A site-to-site VPN allows offices in multiple fixed locations to establish secure connections with each other over a public network such as the Internet. A site-to-site VPN means that two sites create a VPN tunnel by encrypting and sending data between two devices. One set of rules for creating a siteto-site VPN is defined by IPsec.
Q802. Network Access
Which mode must be used to configure EtherChannel between two switches without using a negotiation protocol?
Aon
Bauto
Cactive
Ddesirable
Correct Answer:A
The Static Persistence (or “on” mode) bundles the links unconditionally and no negotiation protocol is used. In this mode, neither PAgP nor LACP packets are sent or received.
Q813. IP Connectivity
A router running EIGRP has learned the same route from two different paths. Which parameter does the router use to select the best path?
Acost
Badminstrative distance
Cmetric
Das-path
Correct Answer:C
If a router learns two different paths for the same network from the same routing protocol, it has to decide which route is better and will be placed in the routing table. Metric is the measure used to decide which route is better (lower number is better). Each routing protocol uses its own metric. For example, RIP uses hop counts as a metric, while OSPF uses cost. Click hereClick here
Q823. IP Connectivity
R1 has learned route 192.168.12.0/24 via IS-IS. OSPF, RIP. and Internal EIGRP Under normal operating conditions, which routing protocol is installed in the routing table?
AIS-IS
BRIP
CInternal EIGRP
DOSPF
Correct Answer:C
With the same route (prefix), the router will choose the routing protocol with lowest Administrative Distance (AD) to install into the routing table. The AD of Internal EIGRP (90) is lowest so it would be chosen. The table below lists the ADs of popular routing protocols. Note: The AD of IS-IS is 115. The "EIGRP" in the table above is "Internal EIGRP". The AD of "External EIGRP" is 170. An EIGRP external route is a route that was redistributed into EIGRP.
Q833. IP Connectivity
Which MAC address is recognized as a VRRP virtual address?
A0000.5E00.010a
B0005.3711.0975
C0000.0C07.AC99
D0007.C070/AB01
Correct Answer:A
With VRRP, the virtual router's MAC address is 0000.5E00.01xx , in which xx is the VRRP group.
Q846. Automation and Programmability
Which statement correctly compares traditional networks and controller-based networks?
AOnly traditional networks offer a centralized control plane.
BOnly traditional networks natively support centralized management.
CTraditional and controller-based networks abstract policies from device configurations.
DOnly controller-based networks decouple the control plane and the data plane.
Correct Answer:D
Most traditional devices use a distributed architecture, in which each control plane is resided in a networking device. Therefore they need to communicate with each other via messages to work correctly. In contrast to distributed architecture, centralized (or controller-based) architectures centralizes the control of networking devices into one device, called SDN controller -> Answer D is correct.
Q854. IP Services
If a notice-level messaging is sent to a syslog server, which event has occurred?
AA network device has restarted.
BAn ARP inspection has failed.
CA routing instance has flapped.
DA debug operation is running.
Correct Answer:C
Usually no action is required when a route flaps so it generates the notification syslog level message (level 5).
Q863. IP Connectivity
Refer to the exhibit. With which metric was the route to host 172.16.0.202 learned?
A0
B110
C38443
D3184439
Correct Answer:C
Both the line "O 172.16.0.128/25" and "S 172.16.0.0/24" cover the host 172.16.0.202 but with the "longest (prefix) match" rule the router will choose the first route.
Q873. IP Connectivity
Refer to the exhibit. If configuring a static default route on the router with the ip route 0.0.0.0 0.0.0.0 10.13.0.1 120 command, how does the router respond? A. It ignores the new static route until the existing OSPF default route is removed.
BIt immediately replaces the existing OSPF route in the routing table with the newly configured static route.
CIt starts load-balancing traffic between the two default routes.
DIt starts sending traffic without a specific matching entry in the routing table to GigabitEthernet0/1.
Correct Answer:A
Our new static default route has the Administrative Distance (AD) of 120, which is bigger than the AD of OSPF External route (O*E2) so it will not be pushed into the routing table until the current OSPF External route is removed. For your information, if you don't type the AD of 120 (using the command "ip route 0.0.0.0 0.0.0.0 10.13.0.1") then the new static default route would replace the OSPF default route as the default AD of static route is 1. You will see such line in the routing table: S* 0.0.0.0/0 [1/0] via 10.13.0.1
