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Data Communications and Networking 3

Showing 151-225 of 247 answers

In verifying multiarea OSPF which command can be used to verify the contents of the LSDB in an OSPF area?
  • show ip ospf database Correct
In which IOS CLI mode must a network engineer issue the maximum paths command to configure load balancing in EIGRP?
  • router configuration mode Correct
In wireless LAN security what is an advantage of SSID cloaking?
  • Clients will have to manually identify the SSID to connect to the network. Correct
In wireless LAN standards what wireless LAN technology that is an IEEE 802.15 WPAN standard; uses a device pairing process to communicate over distance up to .05 mile (100m)?
  • Bluetooth Correct
In wireless LAN technologies what wireless LAN technology that operates in the range of a few hundred feet?
  • WLAN Correct
In wireless LAN technology and standards what classification do Bluetooth belongs?
  • WPAN Correct
It is known as WiGig and operates using a tri-band solution in the 2.4, 5, and 60 GHz ranges in IEEE wireless standard?
  • 802.11ad Correct
Observe the given output below. A certified network engineer is troubleshooting host connectivity on a LAN that uses a first hop redundancy protocol. Which IPv4 gateway address should be configured on the host?
  • 192.168.2.100 Correct
OSPF type 2 LSA messages are only generated by the DR router to advertise routes in multiaccess networks.
  • TRUE Correct
R1(config)# boot system rom
  • R1(config)# boot system rom Correct
R1(config)# boot system tftp://c1900-universalk9-mz.SPA.152-4.M3.bin
  • R1(config)# boot system tftp://c1900-universalk9-mz.SPA.152-4.M3.bin Correct
Refer to the exhibit shown above. A certified network administrator is troubleshooting the four routers that are connected to an Ethernet LAN segment and are configured to run OSPFv3. However, none of the routers are receiving routing updates. What is the cause of the problem?
  • All of the routers have an OSPFv3 interface priority of 0. Correct
Refer to the exhibit shown. What command statement must be issued to complete the configuration at R1 for multiarea OSPF.
  • network 192.168.10.128 0.0.0.127 area 1 Correct
Refer to the exhibit. In RMS Robotics Industries network, Four routers are connected to an Ethernet LAN segment and are configured to run OSPFv3. However, none of the routers are receiving routing updates. What is the cause of the problem?
  • All of the routers have an OSPFv3 interface priority of 0. Correct
Refer to the network topology diagram above. A certified network expert has configured the OSPF timers to the values that are shown in the graphic. What is the result of having those manually configured timers?
  • The R1 dead timer expires between hello packets from R2 Correct
Refer to the series of ip addresses below. A network specialist has been asked to summarize the networks shown in the exhibit as part of a multiarea OSPF implementation. All addresses are using a subnet mask of 255.255.255.0. What is the correct summarization for these eight networks? 10.0.4.0 10.0.8.0 10.0.5.0 10.0.9.0 10.0.6.0 10.0.10.0 10.0.7.0 10.0.11.0
  • 10.0.0.0 255.255.240.0 Correct
Refer to the test result above. These two routers are configured to run OSPFv3 but they are not forming a neighbor adjacency. What is the cause of the problem?
  • The routers are configured with the same router ID. Correct
Referring to the diagram below of Chooks-to-Go office. Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch?
  • EtherChannel Correct
Referring to the exhibit, the command “show ipv6 route can be issued on router R2 to verify the propagation of a static default router from R1 to R2" As discussed in this chapter why is MD5 authentication is more secure than simple authentication of OSPF updates?a
  • MD5 does not send the password to the neighbor router. Correct
Referring to the sample result above, a network specialist has configured eigrp authentication between routers R! and R2. After there routing tables are received, it is noted that neither router is receiving eigrp updates. What is a possible cause for this failure?
  • The same autonomous system numbers must be used in the interface configurations of each router. Correct
Referring to the test result shown above. Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this RouterD?
  • 172.16.5.1 Correct
Standard Electric Company is planning the implementation of Rapid PVST+ on a production network. How are the Rapid PVST+ link types determined on the switch interfaces?
  • Link types are determined automatically Correct
The backbone area interconnects with all other OSPF area types.
  • TRUE Correct
The client of a networking company requires VPN connectivity for workers who must travel frequently. To support the VPN server, the customer router must be upgraded to a new Cisco IOS software version with the Advanced IP Services feature set. What should the field engineer do before copying the new IOS to the router?
  • Issue the show version and the show flash commands to ensure that the router has enough memory and file space to support the new IOS image. Correct
The network engineer of 3A Recording Studiohas added a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem? Router(config)# router ospf 1 Router(config-router)# network 10.0.0.0 255.0.0.0 area 0
  • The network wildcard mask is configured improperly. Correct
The network engineer of RMS University has configured the hello interval to 15 seconds on an interface of a router that is running OSPFv2. By default, how will the dead interval on the interface be affected?
  • The dead interval will now be 60 seconds. Correct
The network engineer of Stark Industries has manually configured the hello interval to 15 seconds on an interface of a router that is running OSPFv2. By default, how will the dead interval on the interface be affected?
  • The dead interval will now be 60 seconds. Correct
The network specialist has manually configured the hello interval to 15 seconds on an interface of a router that is running OSPFv2. By default, how will the dead interval on the interface be affected?
  • The dead interval will now be 60 seconds. Correct
The PRD company network engineer is upgrading the Cisco IOS image on a Cisco ISR 4000 series. What command could the engineer use to verify the total amount of flash memory as well as how much flash memory is currently available?
  • show flash0: Correct
The Predator Missile factory network administrator is checking and troubleshooting an EIGRP problem on a router and needs to confirm the IP addresses of the devices with which the router has established adjacency. The retransmit interval and the queue counts for the adjacent routers also need to be checked. What command will display the required information?
  • Router# show ip eigrp neighbors Correct
The trunk link between two 2960 switches has reached its capacity. How can solve this problem in the most economical way?
  • Combine physical ports into a high-speed logical link by configuring EtherChannel. Correct
The trunk link between two 2960 switches has reached its capacity. In understanding of link aggregation, how can this be addressed in the most economical way?
  • Combine physical ports into a high-speed logical link by configuring EtherChannel. Correct
The use of PAgP to create EtherChannels is discussed in link aggregation chapter as part of Scaling Network. Which statement below as discussed in this course is true about PagP?
  • It is a Cisco Proprietary Correct
This always appear in certification exams so remember this, which parameter or parameters are used to calculate OSPF cost in Cisco routers?
  • Bandwidth Correct
This wireless attack comes from an old term called war dialing, where people would dial random phone numbers in search of modems. It is basically people driving around looking for vulnerable APs to attack. What wireless attack is this?
  • War driving Correct
Understanding EtherChannel technology, what is an advantage of using LACP?
  • allows automatic formation of EtherChannel links Correct
Understanding multiarea OSPF what is one advantage of using multiarea OSPF?
  • It enables multiple routing protocols to be running in a large network. Correct
Understanding scaling networks, which feature supports higher throughput in switched networks by combining multiple switch ports?
  • Link aggregation Correct
Using 2 switches, which PAgP mode combination will establish an EtherChannel?
  • switch 1 set to desirable; switch 2 set to desirable. Correct
Using LACP, besides of being a multivendor protocol which among the listed below describes as it advantage?
  • allows automatic formation of EtherChannel links Correct
Using PagP as range of ports to be configured as etherchannel, which mode will form the bundled channel only if the port receives PAgP packets from another device?
  • auto Correct
What area interconnects with all other OSPF area types?
  • Backbone Correct
What command will display the required information?
  • What command will display the required information? Correct
What do you called the number of ports available on a single switch?
  • Port density Correct
What does an O IA routing table entry mean?
  • Inter-area route Correct
What happens when a router has two network statements in different areas?
  • It becomes ABR Correct
What is the default hello timer value for STP BPDU frames
  • 2 seconds Correct
What is the effect of the command sequence?
  • What is the effect of the command sequence? Correct
What is the frequency range of the IEEE 802.11b standard as discussed in wireless LAN standards?
  • 2.4GHz Correct
What is the purpose of HSRP in switching environment?
  • It provides a continuous network connection when a router fails. Correct
What is the useof in-band device management and how it is done?
  • It is used to monitor and make configuration changes to a network device over a network connection. Correct
What module consists of the Internet, VPN, and WAN modules connecting the enterprise with the service provider's network and also this module extends the enterprise services to remote sites and enables the enterprise to use Internet and partner resources?
  • Enterprise Edge Correct
What routerhas all of its interfaces in the same area and have identical LSDBs.
  • . Internal Router Correct
What routing table descriptor is used to identify OSPF summary networks that originate from an ABR?
  • O IA Correct
What type of wireless attack that uses the method by flooding an AP with deauthentication frames?
  • Jamming Correct
What wireless LAN technology that operates in the range of a few hundred feet?
  • WLAN Correct
What wireless standard consists of various corporate, national, and international organizations using service provider cellular access to provide mobile broadband network connectivity?
  • Cellular Broadband Correct
When a customer purchases a Cisco IOS 15.0 software package, what serves as the receipt for that customer and is used to obtain the license as well?
  • End User License Agreement Correct
When a home wireless AP is being configured, _____ is used to identify the wireless network name?
  • SSID Correct
When a range of ports is being configured for EtherChannel by the use of PAgP, which mode will form the bundled channel only if the port receives PAgP packets from another device?
  • auto Correct
When a range of ports is being configured for EtherChannel, which mode will configure LACP so that it initiates the EtherChannel negotiation?
  • active Correct
When OSPFv2 neighbors are establishing adjacencies, in which state do they elect a DR and BDR router?
  • Two-Way state Correct
Where are EIGRP successor routes stored?
  • in the routing table and the topology table Correct
Where do inter-area route summarization be performed in an OSPF network?
  • ABR Correct
Which 3 features are OSPF routing protocol?
  • Converge quickly, Identify the best route by the use of cost & before exchanging routing information, OSPF routers find out neighbors. Correct
Which among the commands below must be entered on a serial interface of a Cisco router to restore the bandwidth to the default value of that specific router interface?
  • No bandwidth Correct
Which among the listed below are the 2 functional parts of the network that can be combined to form a collapsed core design in Cisco Enterprise Architecture?
  • Distribution and core layer Correct
Which among the listed below are two types of spanning tree protocols can cause suboptimal traffic flows because they assume only one spanning-tree instance for the entire bridged network?
  • STP & RSTP Correct
Which among the listed below is an advantage of PVST+?
  • PVST+ optimizes performance on the network through load sharing. Correct
Which area is referred to as the "backbone area"?
  • . Area 0 Correct
Which command statement below will a network engineer issue to verify the configured hello and dead timer intervals on a point-to-point WAN link between two routers that are running OSPFv2?
  • show ip ospf interface serial 0/0/0 Correct
Which command will a network engineer issue to verify the configured hello and dead timer intervals on a point-to-point WAN link between two routers that are running OSPFv2?
  • show ipospf interface serial 0/0/0 Correct
Which describes a multiarea OSPF network?
  • It has a core backbone area with other areas connected to the backbone area. Correct
Which feature of EIGRP supports AppleTalk, IP version 4 (IPv4), IP version 6 (IPv6), and Novell Internetwork Packet Exchange (IPX)?
  • Multiple network layer support Correct
Which IEEE wireless standard is known as WiGig and operates using a tri-band solution in the 2, 4, 5, and 60 GHz ranges?
  • 802.11ad Correct
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