Practical 300-135 Exam Questions and Answers 2021

NEW QUESTION 1
Which of the following is not an essential prerequisite for AutoQoS to be correctly applied to an interface? (Choose all that apply.)

• A. The interface must be configured as a Multilink PPP interface.
• B. The correct bandwidth should be configured on the interface.
• C. A QoS policy must not be currently attached to the interface.
• D. CEF must be enabled.
• E. AutoQoS must be enabled globally before it can be enabled on the interface.
• F. An IP address must be configured on the interface if its speed is equal to or less than 768 kbps.

Answer: AE

NEW QUESTION 2
The implementations group has been using the test bed to do a ‘proof-of-concept’ that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing schemes, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened DSW1 will not become the active router for HSRP group 10.
Use the supported commands to isolated the cause of this fault and answer the following questions. What is the solution to the fault condition?

• A. Under the interface vlan 10 configuration enter standby 10 preempt command.
• B. Under the track 1 object configuration delete the threshold metric up 1 down 2 command and enter the threshold metric up 61 down 62 command.
• C. Under the track 10 object configuration delete the threshold metric up 61 down 62 command and enter the threshold metric up 1 down 2 command.
• D. Under the interface vlan 10 configuration delete the standby 10 track1 decrement 60 command and enter the standby 10 track 10 decrement 60 command.

Answer: D

Explanation: On DSW1, related to HSRP, under VLAN 10 change the given track 1 command to instead use the track 10 command.

NEW QUESTION 3
You are performing a peer review on this implementation script, which is intended to enable AAA on a device.

If the script is deployed which two effects does it have on the device? (Choose two.)

• A. Part of the script is rejected.
• B. The device authenticates users against the local database first.
• C. The device fails to perform AAA because session-id common command is missing.
• D. The device authenticates all users except nmops and nmeng against the TACACS+ database.
• E. The device fails to perform AAA because the aaa new-model command is missing.

Answer: AE

Explanation: R1#sh run | sec aaa
R1(config)#aaa authentication ?
R1(config)#aaa authentication login default local
^
% Invalid input detected at ‘^’ marker. Also when enabling AAA:
R1#sh run | sec aaa aaa new-model
aaa authentication login default local aaa session-id common

NEW QUESTION 4
Which two statements about GRE tunnel keepalives are true? (Choose two)

• A. They are supported in point-to-point GRE tunnels.
• B. They are supported in multipoint GRE tunnels.
• C. They are supported in VRFs only if the fVRF and iVRF match.
• D. They are supported with IPsec tunnel protection.
• E. They are enabled by default.

Answer: AD

NEW QUESTION 5
What debug command is used to identify and troubleshoot IP Fragmentation and Path Maximum Transmission Unit Discovery issues?

• A. debug ip icmp
• B. debug ip packet
• C. debug ip policy
• D. debug ip routing

Answer: B

NEW QUESTION 6
The implementations group has been using the test bed to do a ‘proof-of-concept’ that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing scheme, DHCP services, NTP services, and FHRP services, a trouble ticket has been operated indicating that Client 1 cannot ping the 209.65.200.241 address.
Use the supported commands to Isolated the cause of this fault and answer the following questions. On which device is the fault condition located?

• A. R1
• B. R2
• C. R3
• D. R4
• E. DSW1
• F. DSW2
• G. ASW1
• H. ASW2

Answer: G

Explanation: Since the Clients are getting an APIPA we know that DHCP is not working. However, upon closer examination of the ASW1 configuration we can see that the problem is not with DHCP, but the fact that the trunks on the port channels are only allowing VLANs 1-9, when the clients belong to VLAN 10. VLAN 10 is not traversing the trunk on ASW1, so the problem is with the trunk configuration on ASW1.

Topic 7, Ticket 2 : ACCESS VLAN
Topology Overview (Actual Troubleshooting lab design is for below network design)
Client Should have IP 10.2.1.3
EIGRP 100 is running between switch DSW1 & DSW2
OSPF (Process ID 1) is running between R1, R2, R3, R4
Network of OSPF is redistributed in EIGRP
BGP 65001 is configured on R1 with Webserver cloud AS 65002
HSRP is running between DSW1 & DSW2 Switches
The company has created the test bed shown in the layer 2 and layer 3 topology exhibits. This network consists of four routers, two layer 3 switches and two layer 2 switches.
In the IPv4 layer 3 topology, R1, R2, R3, and R4 are running OSPF with an OSPF process number 1. DSW1, DSW2 and R4 are running EIGRP with an AS of 10. Redistribution is enabled where necessary.
R1 is running a BGP AS with a number of 65001. This AS has an eBGP connection to AS 65002 in the ISP’s network. Because the company’s address space is in the private range.
R1 is also providing NAT translations between the inside (10.1.0.0/16 & 10.2.0.0/16) networks and outside (209.65.0.0/24) network.
ASW1 and ASW2 are layer 2 switches.
NTP is enabled on all devices with 209.65.200.226 serving as the master clock source.
The client workstations receive their IP address and default gateway via R4’s DHCP server.
The default gateway address of 10.2.1.254 is the IP address of HSRP group 10 which is running on DSW1 and DSW2.
In the IPv6 layer 3 topology R1, R2, and R3 are running OSPFv3 with an OSPF process number 6. DSW1, DSW2 and R4 are running RIPng process name RIP_ZONE.
The two IPv6 routing domains, OSPF 6 and RIPng are connected via GRE tunnel running over the underlying IPv4 OSPF domain. Redistrution is enabled where necessary.
Recently the implementation group has been using the test bed to do a ‘proof-of-concept’ on several
implementations. This involved changing the configuration on one or more of the devices. You will be presented with a series of trouble tickets related to issues introduced during these configurations.
Note: Although trouble tickets have many similar fault indications, each ticket has its own issue and solution.
Each ticket has 3 sub questions that need to be answered & topology remains same. Question-1 Fault is found on which device,
Question-2 Fault condition is related to,
Question-3 What exact problem is seen & what needs to be done for solution


Client is unable to ping IP 209.65.200.241
Solution
Steps need to follow as below:-
When we check on client 1 & Client 2 desktop we are not receiving DHCP address from R4 Ipconfig ----- Client will be getting 169.X.X.X
On ASW1 port Fa1/0/ 1 & Fa1/0/2 access port VLAN 10 was assigned which is using IP address 10.2.1.0/24
Sh run ------- & check for running config of int fa1/0/1 & fa1/0/2
====================================================

====================================================
Here we are not able to see access Vlan10 configured for Port Fa1/0/1 & Fa1/0/2
Change required: On ASW1, for configuring Access Vlan under interface fa1/0/1 & 1/0/2 we have to enable command switchport access vlan 10

NEW QUESTION 7
The implementation group has been using the test bed to do an IPv6 'proof-of-concept1. After several changes to the network addressing and routing schemes, a trouble ticket has been opened indicating that the loopback address on R1 (2026::111:1) is not able to ping the loopback address on DSW2 (2026::102:1).
Use the supported commands to isolate the cause of this fault and answer the following question.
What is the solution to the fault condition?

• A. Under the interface Tunnel34 configuration delete the tunnel mode ipv6 command.
• B. Under the interface Serial0/0/0.34 configuration enter the ipv6 address 2026::34:1/122 command.
• C. Under the interface Tunnel34 configuration enter the ip address unnumbered Serial0/0/0.34 command.
• D. Under the interface Tunnel34 configuration delete the tunnel source Serial0/0/0.34 command and enter the tunnel source 2026::34:1/122 command.

Answer: A

Explanation: As explained earlier, the problem is with route misconfigured tunnel modes on R3. R3 is using tunnel mode ipv6, while R4 is using the default of GRE. We need to remove the “tunnel mode ipv6” command under interface Tunnel34

NEW QUESTION 8
Which two conditions can you use to filter the output of the debug condition command? (Choose two.)

• A. interface ID
• B. port number
• C. packet size
• D. protocol
• E. username

Answer: AE

Explanation: R1#debug condition ? application Application called called number calling calling
card card
glbp interface group interface interface ip IP address
mac-address MAC address match-list apply the match-list standby interface group username username
vcid VC ID vlan vlan
voice-port voice-port number
xconnect Xconnect conditional debugging on segment pair

NEW QUESTION 9
You enabled CDP on two Cisco Routers which are connected to each other. The Line and Protocol status for the interfaces on both routers show as UP but the routers do not see each other a CDP neighbors. Which layer of the OSI model does the problem most likely exist?

• A. Physical
• B. Session
• C. Application
• D. Data-Link
• E. Network

Answer: D

Explanation: CDP is a protocol that runs over Layer 2 (the data link layer) on all Cisco routers, bridges, access servers, and switches. CDP allows network management applications to discover Cisco devices that are neighbors of already known devices, in particular, neighbors running lower-layer, transparent protocols. With CDP, network management applications can learn the device type and the SNMP agent address of neighboring devices. This feature enables applications to send SNMP queries to neighboring devices. In this case, the line protocol is up which means that the physical layer is operational (layer 1) but the data link layer is not.
Reference: “Configuring CDP”
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.1E/native/configuration/guide/cdp.html

NEW QUESTION 10
A user is able to log into the switch but cannot enable. What might be the reason?

• A. change authorization level
• B. change accounting
• C. change authentication
• D. change username password

Answer: A

NEW QUESTION 11
Which of the following are byproducts of a structured maintenance plan? (Choose all that apply.)

• A. Predictable security vulnerabilities
• B. Economies of scale
• C. Improved expenditure forecasts
• D. Increased downtime
• E. Predictable equipment obsolescence
• F. Consumption of fewer resources

Answer: ABCEF

NEW QUESTION 12
Refer to the exhibit.

A NOC technician is troubleshooting an EIGRP connection between RouterC IP address 192 168.1 1. and RouterD. IP address 192.168.1 2 Given the debug output on RouterC which outcome is valid?

• A. RouterC received a hello packet with mismatched authentication parameters.
• B. RouterC received a hello packet with mismatched hello timers
• C. RouterC will form an adjacency with RouterD
• D. RouterC will not form an adjacency with RouterD

Answer: D

NEW QUESTION 13
The implementations group has been using the test bed to do a ‘proof-of-concept’. After several changes to the network addressing, routing schemes, a trouble ticket has been opened indicating that the loopback address on R1 (2026::111:1) is not able to ping the loopback address on DSW2(2026::102:1).
Use the supported commands to isolated the cause of this fault and answer the following questions. On which device is the fault condition located?

• A. R1
• B. R2
• C. R3
• D. R4
• E. DSW1
• F. DSW2
• G. ASW1
• H. ASW2

Answer: B

Explanation: R2 is missing the needed IPV6 OSPF for interface s0/0/0.23

NEW QUESTION 14
The implementations group has been using the test bed to do a ‘proof-of-concept’ that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing scheme, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened indicating that Client 1 cannot ping the 209.65.200.241 address.
Use the supported commands to isolated the cause of this fault and answer the following questions. The fault condition is related to which technology?

• A. NTP
• B. IP DHCP Helper
• C. IPv4 EIGRP Routing
• D. IPv6 RIP Routing
• E. IPv4 layer 3 security
• F. Switch-to-Switch Connectivity
• G. Loop Prevention
• H. Access Vlans
• I. Port Security
• J. VLAN ACL / Port ACL
• K. Switch Virtual Interface

Answer: J

Explanation: On DSW1, VALN ACL, Need to delete the VLAN access-map test1 whose action is to drop access-list 10; specifically 10.2.1.3

NEW QUESTION 15
Refer to the exhibit.

Which statement indicates a cause for Tunnel0's connection failure?

• A. The tunnel destination interface is flapping, which causes the tunnel to go up and down.
• B. The tunnel source interface is in an up/down state and the tunnel destination is recursively routing as a result
• C. The tunnel is configured with the wrong encapsulation
• D. The tunnel destination is intermittently reachable via multiple routing protocols

Answer: D

Explanation: Reference:
https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/22327-gre-fla

NEW QUESTION 16
When troubleshooting an EIGRP connectivity problem, you notice that two connected EIGRP routers are not becoming EIGRP neighbors. A ping between the two routers was successful. What is the next thing that should be checked?

• A. Verify that the EIGRP hello and hold timers match exactly.
• B. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP peer command.
• C. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP traffic command.
• D. Verify that EIGRP is enabled for the appropriate networks on the local and neighboring router.

Answer: D

NEW QUESTION 17
Which of the following is an unlikely reason for the ARP process to fail?

• A. CEF switching is disabled on the switch
• B. The source device and destination device are in different VLANs
• C. The VLAN is excluded from the trunk
• D. The host is connected to the switch through an IP phone
• E. A faulty cable from host to switch or between switches
• F. The trunking encapsulation type is inconsistent on the two ends of the link

Answer: AD

NEW QUESTION 18
Which of the following commands can be used to gather information about the AS-PATH of a BGP route? (Choose all that apply.)

• A. show ip bgp neighbors
• B. debug ip bgp updates
• C. show ip route bgp
• D. show ip bgp
• E. show ip bgp summary
• F. sh ip bgp database

Answer: BD

Explanation: Incorrect:
show ip bgp summary: The command show ip bgp summary does not presents informations about routes.