Data Communications and Networking 3

Data Communications and Networking 3

Cisco suggests a Three−Tier (Three Layer) hierarchical network model, that consists of three layers: the Core layer, the Distribution layer, and the Access layer. Cisco Three-Layer network model is the preferred approach to network design.



show flash0: 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?
O IA A CCIE network administrator is verifying a multi-area OSPF configuration by checking the routing table on a router in area 1. The administrator notices a route to a network that is connected to a router in area 2. Which code appears in front of this route in the routing table within area 1?
up to 50 seconds A network link connected to a switch went down. How long can it take for a network using spanning tree topology to converge again after a topology change?
2 & 6 7. Which two networks are part of the summary route 192.168.32.0/22? (Choose a letter)
They are required to reload frequently and quickly in order to update the LSDB. In understanding of this chapter which characteristic describes both ABRs and ASBRs that are implemented in a multiarea OSPF network?
in the routing table and the topology table During EIGRP operation where do successor routes stored?
DATA As discussed in this chapter, beginning with the Cisco IOS Software Release 15.0, which license is a prerequisite for installing additional technology pack licenses?
flash memory During the upgrade of IOS system image, a router is powered on, where will the router first search for a valid IOS image to load by default?
Product Activation Key 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?
The network wildcard mask is configured improperly. A certified network administrator is trying to add 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?
Less Overhead Among the features of EIGRP which uses multicast and unicast rather than broadcast?
the use of multiple areas In OSPF discussions what is used to facilitate hierarchical routing in OSPF?
Manually remove redundant links in the switched network. A network problem occurs suddenly, what is the initial approach that should be used to troubleshoot a broadcast storm in a switched network?
External ASBRs are capable of summarizing which type of routes?
Bluetooth 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)?
c During the network troubleshooting in RMS Hospital the network administrator notice 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?
It is an IOS version that, at the request of some countries, removes any strong cryptographic functionality. In understanding IOS system image files what statement describes a Cisco IOS image with the “universalk9_npe” designation for Cisco ISR G2 routers?
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. 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?
Hello & Ack During EIGRP operation which two EIGRP packet types are sent with reliable delivery?
Advanced Enterprise Services In understanding IOS system image files which IOS 12.4 software package integrates full features, including voice, security, and VPN capabilities, for all routing protocols?
They consist of two separate parallel trains. In understanding Cisco IOS image which statement describes a difference between the IOS 15.0 extended maintenance release and a standard maintenance release?
2.4Ghz Among the 802.11 standards what is the frequency assigned for 802.11g?
allows automatic formation of EtherChannel links Understanding EtherChannel technology, what is an advantage of using LACP?
interface port-channel interface-identifier Based on the discussion in this chapter, which command syntax will initiate EtherChannel interface configuration mode?
2, 4 & 5 Which three steps in the design and implementation of a multiarea OSPF network are considered planning steps? (Choose a letter)
It has a core backbone area with other areas connected to the backbone area. In understanding multiarea OSPF network which statement describes a multiarea OSPF network?
show spanning-tree A newly hired certified network engineer of RMS Industries is troubleshooting a switch and wants to verify if it is a root bridge. Which of the following listed below is the right command to display the correct information?
IPBase As discussed in this chapter, beginning with the Cisco IOS Software Release 15.0, which license is a prerequisite for installing additional technology pack licenses?
SPA Discussed in chapter 9, what code in the Cisco IOS 15 image filename C1900-UNIVERSALK9-MZ.SPA.153-3.M.BIN Indicates that the file is digitally signed by Cisco?
c A network engineer in ABC Enterprise is asked to stop auto route summary in EIGRP, which command you will use to prevent auto summary?
allows automatic formation of EtherChannel links Using LACP, besides of being a multivendor protocol which among the listed below describes as it advantage?
The standard maintenance release enables faster IOS feature delivery than the extended maintenance release does. In understanding Cisco IOS image which statement describes a difference between the IOS 15.0 extended maintenance release and a standard maintenance release?
Deploy a Wi-Fi Repeater. A certified wireless professional wishes to extend the range of the existing IEEE 802.11n network without changing the AP. What can the administrator do to accomplish this?
Bandwidth & delay A new network specialist has been asked to verify the metrics that are used by EIGRP on a Cisco device. Which two EIGRP metrics are measured by using static values on a Cisco device?
the use of multiple areas 8. In OSPF discussions what is used to facilitate hierarchical routing in OSPF?
It is an IOS version that provides only the IPBase feature set. In understanding IOS system image files what statement describes a Cisco IOS image with the “universalk9_npe” designation for Cisco ISR G2 routers?
2, 3 & 4 10. Which three steps in the design and implementation of a multiarea OSPF network are considered planning steps? (Choose a letter)
54Mb/s Among the 802.11 standards what is the maximum speed of 802.11a?
End User License Agreement 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?
The router will load IOS from the TFTP server. If the image fails to load, it will load the IOS image from ROM. A CCNA network administrator configures a router with the command sequence:
R1(config)# boot system tftp://c1900-universalk9-mz.SPA.152-4.M3.bin
R1(config)# boot system rom
What is the effect of the command sequence?
It enables multiple routing protocols to be running in a large network. Understanding multiarea OSPF what is one advantage of using multiarea OSPF?
The subnet masks on the two connected serial interfaces do not match. A network specialist of PRS Industries is troubleshooting an OSPFv2 network and discovers that two routers connected by a point-to-point WAN serial link are not establishing an adjacency. The OSPF routing process, network commands and area ID are all confirmed as correct, and the interfaces are not passive. Testing shows that the cabling is correct, that the link is up, and pings between the interfaces are successful. What is most likely the problem?
show version 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?
Issue the clear ip ospf process privileged mode command. A certified network administrator of RMS Company has just changed the router ID on a router that is working in an OSPFv2 environment. What should the administrator do to reset the adjacencies and use the new router ID?
type 1 As discussed in this chapter multiarea OSPF what OSPF LSA type is used to inform routers of the router ID of the DR in each multiaccess network in an OSPF area?
An access list that is blocking the advertisements from other networks was configured in each or both routers During network troubleshooting in MAX Industries factory 2 routers, R1 and R2, have established an EIGRP neighbor relationship, but there is still a connectivity problem. Which issue could be causing this problem?
Man in the middle A network expert discovers a rogue AP in the network. The rogue AP is capturing traffic and then forwarding it on to the legitimate AP. What type of attack is this?
Set the router to load the new IOS image file directly from the TFTP server on the next reboot. 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?
any router In understanding of multiarea OSPF where do inter-area route summarization be performed in an OSPF network?
Load balancing Among the listed below which is a feature of EIGRP?
192.168.100.192 0.0.0.63 During summarization configuration what address and wild card mask can be used to enable EIGRP for only the subnet 192.168.100.192 255.255.255.192?
Add another access point. A remote class room can successfully access video-intensive streaming lectures via wired computers. However, when an 802.11n wireless access point is installed and used with 25 wireless laptops to access the same lectures, poor audio and video quality is experienced. Which wireless solution would improve the performance for the laptops?
to accommodate routing of different network layer protocols As discussed in chapter 7 as one of the EIGRP concepts what is the purpose of using protocol-dependent modules in EIGRP?
15 As discussed in chapter 9 of Scaling Networks what is the major release number in the IOS image name c1900-universalk9-mz.SPA.152-3.T.bin?
6sec A connection to a switch went down suddenly, how long can it take for a network using RSTP to converge again after a topology change?
WLAN In wireless LAN technologies what wireless LAN technology that operates in the range of a few hundred feet?
auto If 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?
O IA A CCIE network administrator is verifying a multi-area OSPF configuration by checking the routing table on a router in area 1. The administrator notices a route to a network that is connected to a router in area 2. Which code appears in front of this route in the routing table within area 1?
52 As discussed in chapter 9 of Scaling Networks what is the major release number in the IOS image name c1900-universalk9-mz.SPA.152-3.T.bin?
The subnet masks on the two connected serial interfaces do not match. A network specialist of Avengers Corporation is troubleshooting an OSPFv2 network and discovers that two routers connected by a point-to-point WAN serial link are not establishing an adjacency. The OSPF routing process, network commands and area ID are all confirmed as correct, and the interfaces are not passive. Testing shows that the cabling is correct, that the link is up, and pings between the interfaces are successful. What is most likely the problem?
GLBP A certified network expert is configuring a LAN with a redundant first hop to make better use of the available network resources. Which protocol should the engineer implement?
Jamming What type of wireless attack that uses the method by flooding an AP with deauthentication frames?
Multi-area OSPF If you planning to built a large network composed of datacenters, nationwide branches office, stores, remote overseas offices which of these works better for larger network such as this?
2 & 3 Which two networks are part of the summary route 192.168.32.0/22? (Choose a letter)
grouping multiple physical ports to increase bandwidth between two switches A newly hired network engineer has been instructed to implement EtherChannel in a corporate network. What does this configuration consist of?