2014 Latest Cisco 350-001 Dump Free Download(111-120)!
QUESTION 111
Two BGP peers connected through a routed firewall are unable to establish a peering relationship.
What could be the most likely cause?
A. BGP peers must be Layer 2-adjacent.
B. EBGP multihop is not configured.
C. The firewall is not configured to allow IP protocol 89.
D. The firewall is not configured to allow UDP 179.
Answer: B
Explanation:
http://www.cisco.com/en/US/docs/security/asa/asa72/configuration/guide/fwmode.html#wp12016
QUESTION 112
Which two of these steps are minimum requirements to configure OSPFv3 under IPv6? (Choose
two.)
A. Configure a routing process using the command ipv6 router ospf [process-id].
B. Add the network statement for the interfaces on which OSPF will run.
C. Configure OSPF on the interface that it will run on.
D. Use the passive-interface command on the interfaces on which OSPF should not run.
E. Enable routing.
Answer: CE
Explanation:
The first step to configure OSPFv3 under IPv6 is to enable IPv6 unicast routing:
R1(config)# ipv6 unicast-routing
Also we need to enable the OSPF process:
R1(config)# ipv6 router ospf 1
There are a few changes in configuring OSPFv3 vs OSPF for IPv4. Instead of using the “network” and “area” commands in ospf router configuration mode you now configure OSPFv3 on a per interface basis using the ipv6 ospf area command in interface configuration mode. For example:
R1(config)# interface fa0/0
R1(config-if)# ipv6 ospf 1 area 0
Note: The “network” command does not exist in OSPFv3.
http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-ospf.html#wp1070061 Note: You will see under the section how to implement ospf for ipv6 it only has 1 REQUIRED thing configure interface and in the comments it says that OSPF IPV6 routing is disabled by default.
QUESTION 113
You add the following commands into a routed topology: router eigrp 1 variance 3 traffic-share min across-interfaces. Users now complain about voice quality in your VoIP system. What should be done?
A. Add the command: router eigrp 1 traffic-share voice interface fast 0/0.
B. Reconfigure EIGRP to recognize voice packets.
C. Remove the variance from the configuration.
D. Reconfigure the VoIP system to use RTP sequence number headers.
E. Use an H.323 gatekeeper for your VoIP system to negotiate an H.245 uneven packet buffer.
F. Reconfigure EIGRP to version 2.
Answer: C
Explanation:
Traffic-share min command causes EIGRP to divide traffic only among the routes with the best metric. When the traffic-share min command is used with the across-interfaces keyword, an attempt is made to use as many different interfaces as possible to forward traffic to the same destination. Therefore with the configuration above, EIGRP will only use equal-cost load-balancing feature even when the variance command is used. However, if you use both the traffic-share min command and variance command, even though traffic is sent over the minimum-cost path only, all feasible routes get installed into the routing table, which decreases the convergence times.
QUESTION 114
You have done a partial migration from 802.1D STP to 802.1w STP. Which of the following is true?
A. 802.1D and 802.1w interoperate only when the 802.1D STP domain supports rapid convergence.
B. Ports leading to 802.1D devices will run in compatibility mode, while the rest of the ports will run in
802.1w mode.
C. This is an invalid configuration and a partial migration cannot be done.
D. The bridge timers will be set to match the 802.1D devices.
E. A secondary root bridge will always be populated within the 802.1D domain.
F. If the root bridge is selected within the 802.1D domain, the whole STP domain will run in 802.1D
compatibility mode.
G. In partially migrated 802.1w networks, it is recommended to keep the STP diameter below 4.
Answer: B
Explanation:
IEEE 802.1w RSTP is designed to be compatible with IEEE 802.1d STP. Even if all the other devices in your network are using STP, you can enable RSTP on your switch, and even using the default configuration values, your switch will interoperate effectively with the STP devices. If any of the switch ports are connected to switches or bridges on your network that do not support RSTP, RSTP can still be used on this switch. RSTP automatically detects when the switch ports are connected to non-RSTP devices in the spanning tree and communicates with those devices using 802.1d STP BPDU packets.
QUESTION 115
The network administrator is trying to add Switch1 to the network, but the 802.1 Q trunk is not coming up. Switch1 was previously tested in the laboratory and its trunk configuration worked fine. What are three possible causes of this problem? (Choose three.)
A. The trunking configuration mode on Switch1 is set to Off.
B. The trunking configuration mode on the other end is set to On.
C. The trunking configuration mode on the other end is set to Desirable.
D. Cisco Discovery Protocol is not running on the other end.
E. There is a VTP domain name mismatch.
F. Switch1 does not support 802.1Q.
Answer: AEF
Explanation:
There are 5 possible trunking modes for a switch port:
Auto: this is the default mode. In this mode, a port will become a trunk port if the device the port is connected to is set to the on or desirable mode.
Desirable: allows the port to become a trunk port if the device the port is connected to is set to the on, desirable, or auto mode
On: sets the port to permanent trunking mode.
Nonegotiate: sets the port to permanent trunking mode without sending Dynamic Trunking Protocol (DTP)
Frame Off: sets the port to permanent non-trunking mode In this case, we can guess the trunking mode of Switch 1 is auto (default mode). When in the laboratory, the trunking mode of the other end is set to On or Desirable so 2 switches can negotiate and the link becomes trunk with no problem. But when plugging to the network, other switches may have the trunking mode set to auto so the 802.1Q trunk is not coming up Of course these switches need to be in the same VTP domain so that they can talk with each other. When trying to configure a trunk negation with a mismatched VTP domain you will receive the following error %DTP-5-DOMAINMISMATCH: Unable to perform trunk negotiation on port Gig0/1 because of VTP domain mismatch.
Cisco General Networking Theory Quick Reference Sheets
QUESTION 116
The core of a network has four routers connected in a square design with Gigabit Ethernet links using /30 subnets. The network is used to carry voice traffic and other applications. Convergence time is taking more than expected. Which three actions would you take to improve OSPF convergence time? (Choose three.)
A. Increase MTU of the interfaces to accommodate larger OSPF packets
B. Change the network type to point-to-point on those links.
C. Reduce SPF initial timer.
D. Increase hello interval to avoid adjacency flapping.
E. Enable OSPF.
Answer: BCD
Explanation:
The OSPF SPF Throttling is configured using the command timers throttle spf OSPF router configuration command.
spf-start: Initial delay to schedule an SPF calculation after a topology change. Range is 1 to 600000 milliseconds.
spf-hold: Minimum hold-time between two SPF calculations. Range is 1 to 600000 milliseconds. spf-max-wait: Maximum wait between two SPF calculations. Range is 1 to 600000 milliseconds. This command is used to delay the SPF algorithm being executed during network instability. SPF Is very CPU intensive.
QUESTION 117
You replaced your Layer 3 switch, which is the default gateway of the end users. Many users
cannot access anything now, including email, Internet, and other applications, although other
users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem, which one of these actions should you take?
A. Clear the MAC address table in the switch.
B. Clear the ARP cache in the switch.
C. Clear the ARP cache in the end devices.
D. Clear the ARP cache in the application servers.
Answer: C
Explanation:
Each workstation has its own arp cache. To delete the arp cache on a windows desktop do the following:
1. Open the “Command Prompt,” the Windows application that enables running Windows commands and software applications, by clicking the Windows “Start” button, clicking “Programs,” clicking “Accessories” and then clicking “Command Prompt.”
2. Type “netsh interface ip delete arpcache” in the Command Prompt to clear your ARP cache.
3. Type “arp -a” in the Command Prompt to verify that the ARP cache was cleared. The output of this command should be “No ARP Entries Found.”
http://www.ehow.com/how_5097488_clear-arp-cache.html#ixzz1lTxv4dRg
QUESTION 118
An 802.1Q trunk is not coming up between two switches. The ports on both switches are
configured as “switchport mode desirable.” Assuming that there is no physical issue, choose two
possible causes. (Choose two.)
A. Incorrect VTP domain
B. Incorrect VTP password
C. Incorrect VTP mode
D. Incorrect VTP configuration revision
Answer: AB
Explanation:
CCIE Routing and Switching Certification Guide, Fourth Edition
QUESTION 119
When using IP SLA FTP operation, which two FTP modes are supported? (Choose two.)
A. Only the FTP PUT operation type is supported.
B. Active mode is supported.
C. Passive FTP transfer modes are supported.
D. FTP URL specified for the FTP GET operation is not supported.
Answer: BC
Explanation:
Both active and passive FTP transfer modes are supported. The passive mode is enabled by default. Only the FTP GET (download) operation type is supported. The URL specified for the FTP GET operation must be in one of the following formats:
ftp://username:password@host/filename
ftp://host/filename
If the username and password are not specified, the defaults are anonymous and test, respectively. FTP carries a significant amount of data traffic and can affect the performance of your network. The results of an IP SLAs FTP operation to retrieve a large file can be used to determine the capacity of the network but retrieve large files with caution because the FTP operation will consume more bandwidth. The FTP operation also measures your FTP server performance levels by determining the RTT taken to retrieve a file.
QUESTION 120
If a certificate authority trustpoint is not configured when enabling HTTPS and the remote HTTPS server requires client authentication, connections to the secure HTTP client will fail. Which
command must be enabled for correct operation?
A. ip http client secure-ciphersuite 3des-ede-cbc-sha
B. ip https max-connections 10
C. ip http timeout-policy idle 30 life 120 requests 100
D. ip http client secure-trustpoint trustpoint-name
Answer: D
Explanation:
IP http client secure-trustpoint
To specify the remote certificate authority (CA) trustpoint that should be used if certification is needed for the secure HTTP client, use the ip http client secure-trustpoint command in global configuration mode. To remove a client trustpoint from the configuration, use the no form of this command.
IP http client secure-trustpoint trustpoint-name
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