Practice Free 300-410 Exam Online Questions
Refer to the exhibit.
An engineer must configure a per VRF for TACACS+ for company A.
Which configuration on RTG-1 accomplishes the task?
- A . Option A
- B . Option B
- C . Option C
- D . Option D
Refer to the exhibit.
The neighbor relationship is not coming up Which two configurations bring the adjacency up? (Choose two)
- A . NY router ospf 1
area 0 authentication message-digest - B . LA
interface E 0/0
ip ospf message-digest-key 1 md5 Cisco123 - C . NY interface E 0/0
no ip ospf message-digest-key 1 md5 Cisco123 ip ospf authentication-key Cisco123 - D . LA
interface E 0/0
ip ospf authentication-key Cisco123 - E . LA
router ospf 1
area 0 authentication message-digest
B,E
Explanation:
The configuration on NY router is good for OSPF authentication. So we must enable OSPF authentication on LA router with the following commands: router ospf 1
area 0 authentication message-digest
interface E0/0
ip ospf message-digest-key 1 md5 Cisco123
Refer to the exhibit.
A network engineer receives a report that Spoke 1 users can perform bank transactions with the server located at the Center site, but Spoke 2 users cannot.
Which action resolves the issue?
- A . Configure the Spoke 2 users IP on the router B OSPF domain
- B . Configure encapsulation dot1q 78 on the router C interface.
- C . Configure IPv6 on the routers B and C interfaces
- D . Configure OSPFv2 on the routers B and C interfaces
What are two purposes of using IPv4 and VPNv4 address-family configurations in a Layer 3 MPLS VPN? (Choose two.)
- A . The VPNv4 address is used to advertise the MPLS VPN label.
- B . RD is prepended to the IPv4 route to make it unique.
- C . MP-BGP is used to allow overlapping IPv4 addresses between customers to advertise through the network.
- D . The IPv4 address is needed to tag the MPLS label.
- E . The VPNv4 address consists of a 64-bit route distinguisher that is prepended to the IPv4prefix.
B,E
Explanation:
VPNv4 address consists of 64-bit Route Distinguisher (RD) prepended to IPv4 prefix. This is to make routes unique that are in different VRFs.
Refer to Exhibit.
Which two configurations allow clients to get dynamic ip addresses assigned?
- A . Configure access-list 100 permit udp any any eq 61 as the first line
- B . Configure access-list 100 permit udp any any eq 86 as the first line
- C . Configure access-list 100 permit udp any any eq 68 as the first line
- D . Configure access-list 100 permit udp any any eq 69 as the first line
- E . Configure access-list 100 permit udp any any eq 67 as the first line
C,E
Explanation:
A DHCP server that receives a DHCPDISCOVER message may respond with a DHCPOFFER message on UDP port 68 (BootP client).
…
In the event that the DHCP server is not on the local subnet, the DHCP server will send the DHCPOFFER, as a unicast packet, on UDP port 67, back to the DHCP/BootPRelay Agent from which the DHCPDISCOVER came.
Reference: https://www.cisco.com/c/en/us/support/docs/ip/dynamic-address-allocation-resolution/27470-100.html
Refer to the exhibit.
An IT staff member comes into the office during normal office hours and cannot access devices through SSH.
Which action should be taken to resolve this issue?
- A . Modify the access list to use the correct IP address.
- B . Configure the correct time range.
- C . Modify the access list to correct the subnet mask
- D . Configure the access list in the outbound direction.
A
Explanation:
To ACL should be permit tcp 101 10.1.1.1 0.0.0.0
Refer to the exhibit.
An IT staff member comes into the office during normal office hours and cannot access devices through SSH.
Which action should be taken to resolve this issue?
- A . Modify the access list to use the correct IP address.
- B . Configure the correct time range.
- C . Modify the access list to correct the subnet mask
- D . Configure the access list in the outbound direction.
A
Explanation:
To ACL should be permit tcp 101 10.1.1.1 0.0.0.0
Refer to the exhibit.
A network engineer configured routers R1 and R2 with MP-BGP. The engineer noticed that the routers cannot exchange any IPv6 routes, however, the IPv4 neighbor relationship is working fine.
Which configuration must the engineer apply to router R2 to exchange IPv6 routes?
- A . Ipv6cef
I
Interface Loopback100
Ipv6 address 2001: DB8:128::2/128 Interface GigabitEthernet1/0 Ipv6 address 2001:DB8:1::2/64
I
router bgp 65002
no bgp default ipv4-unlcast
neighbor 2001: DB8:1::1 emote-as 65001
I
address-family ipv6
network 2001:DB8:128::2/128
neighbor 2001:DB8:1::1 activate - B . Ipv6 unicast-routing ipv6 cef
Interface Loopback100
ipv6 address 2001: DB8:12C:2 129
I
interface GigabitEthernet1/0 ipv6 address 2001: DB8:1::2 64 description AS65001 ID B466:A83D:3D7::1
!
router bgp 65002
no bgp default Ipv4-unicast
neighbor 2001: DB8:1::1 remote-as 65001
!
address-family Ipv4
neighbor 2001:DB8:1::1 activate - C . Ipv6 unicast-routing
ipvG cef
I
Interface Loopback100
Ipv6 address 2001:DB8:128::2/128 I interface GigabitEthernet1/0
ipv6 address 2001:DB8:1::2/64
!
router bgp 65002 no bgp default ipv4-unicast neighbor 2001: DB8:1::1 remote-as 65001
!
address-family ipv6 network 2001:DB8:128::2I128 - D . Ipv6 unicast-routing Ipv6 cef
I
interface Loopback100
ipv6 address 2001: DB8:128::2/128
!
interface GigabitEthernet1/0 ipv6 address 2001:DB8:1::2/64 i
router bgp 65002 no bgp default ipv4-unicast neighbor 2001: DB8:1::1 remote-as 65001
!
address-family ipv6
network 2001:DB8:128::2/128 neighbor 2001:DB8:1::1 activate
An engineer is troubleshooting on the console session of a router and turns on multiple debug commands. The console screen is filled with scrolling debug messages that none of the commands can be verified if entered correctly or display any output.
Which action allows the engineer to see entered console commands while still continuing the analysis of the debug messages?
- A . Configure the logging synchronous command
- B . Configure the no logging console debugging command globally
- C . Configure the logging synchronous level all command
- D . Configure the term no mon command globally
A
Explanation:
Let’s see how the “logging synchronous” command affect the typing command:
Without this command, a message may pop up and you may not know what you typed if that message is too long. When trying to erase (backspace) your command, you realize you are erasing the message instead.
With this command enabled, when a message pops up you will be put to a new line with your typing command which is very
How does LDP operate in an MPLS network?
- A . When topology changes occur such as a router failure, LDP generates peer discovery messages that terminate the LDP season to propagate an LSP change.
- B . When an adjacent LSR receives LDP discovery messages. TCP two-way handshake ensures that the LDP session has unidirectional connectivity.
- C . Peer routers establish the LDP session, and the LDP neighbors maintain and terminate the session by exchanging messages
- D . LDP notification messages allow LERs to exchange label information to determine the next hops within a particular LSP.