Data and Cabling Systems

Introduction to Switching with Lab

NETW206 week 6 quiz Question 1 2 / 2 pts (TCO 5) EIGRP uses the _____ algorithm.   SPF   dual update Correct!   diffusing update   bounded See Chapter 7.   Question 2 2 / 2 pts (TCO 5) What is the autonomous system number used for by EIGRP?   To manage sets of routers under a single administrative control Correct!   As a process ID   As a way to manage the topology table   It is not used by EIGRP, only by OSPF. See Chapter 7.   Question 3 2 / 2 pts (TCO 5) As EIGRP updates are exchanged routers add these entries to what table?   Link state database   Convergence   Router Correct!   Topology See Chapter 7.   Question 4 2 / 2 pts (TCO 5) EIGRP uses what two main metrics?   Reliability, load   Load, bandwidth Correct!   Bandwidth, delay   Delay, hop count See Chapter 7.   Question 5 2 / 2 pts (TCO 5) Which of the following values are included by default in the calculation of an EIGRP metric?   1   Metric   Hop count Correct!   Bandwidth See Chapter 7.   Question 6 2 / 2 pts (TCO 5) To verify the EIGRP bandwidth parameter the _____ command is used. Correct!   show interface   show ip protocols   bandwidth command   show topology table See Chapter 7   Question 7 2 / 2 pts (TCO 5) Which address will EIGRP for IPv6 use as the router ID?   The highest link-local address that is configured on any enabled interface   The highest IPv6 address that is configured on any enabled interface   The highest interface MAC address Correct!   The highest IPv4 address that is configured on an enabled interface See Chapter 7.   Question 8 2 / 2 pts (TCO 5) EIGRP uses the _____ bandwidth in the metric calculation.   average   mean   fastest Correct!   slowest See Chapter 7.   Question 9 Not yet graded / 4 pts (TCO 5) What does the DUAL algorithm do? Your Answer: EIGRP uses the convergence algorithm DUAL. Convergence is critical to a network to avoid routing loops. Routing loops, even temporary ones, can be detrimental to network performance. Distance vector routing protocols, such as RIP, prevent routing loops with hold-down timers and split horizon. Although EIGRP uses both of these techniques, it uses them somewhat differently; the primary way that EIGRP prevents routing loops is with the DUAL algorithm. The DUAL algorithm is used to obtain loop freedom at every instance throughout a route computation. This allows all routers involved in a topology change to synchronize at the same time. Routers that are not affected by the topology changes are not involved in the recomputation. This method provides EIGRP with faster convergence times than other distance vector routing protocols. Chapter 7 See Chapter 7. -As the computational engine that drives EIGRP, the diffusing update Algorithm (DUAL) resides at the center of the routing protocol.  -DUAL guarantees loop-free and backup paths throughout the routing domain.  -Using DUAL, EIGRP stores all available backup routes for destinations so that it can quickly adapt to alternate routes when necessary. Quiz Score:  16  out of 20 PreviousNext Submission Details:

NETW | 206 | Introduction to Switching with Lab | assessment | NETW206 week 6 quiz Question 1

Week 1 Question 1 2 / 2 pts (TCO 1) Which of the following best defines a scalable network?   A scalable network is built to support high-altitude environments, including skyscrapers and satellite dishes on mountains.   A scalable network supports redundant connections so that alternative paths are available when a device or link fails. Correct!   A scalable network can expand quickly to support new users and applications without impacting the performance of the service being offered to existing users.   A scalable network ensures that priorities are matched with the type of communication and its importance to an organization. See Chapter 1 in the textbook and the Week 1 Lecture.   Question 2 2 / 2 pts (TCO 1) Enterprise networks expect a level of reliability of _____ percent up time.   98.999   99.99 Correct!   99.999   >=99 See Chapter 1.1 in the textbook and the Week 1 Lecture.   Question 3 2 / 2 pts (TCO 1) Load-balancing can be implemented with _____.   a collapsed core Correct!   EtherChannel   PoE   wireless connectivity See Chapter 1.1 in the textbook and the Week 1 Lecture.   Question 4 2 / 2 pts (TCO 1) Out-of-band device management is used for initial configuration and _____. Correct!   requires a terminal emulation client   requires Telnet, SSH, or HTTP to access a Cisco device   requires a direct connection to a network interface   requires a network interface on the device to be connected and operational See Chapter 1.2 in the textbook and the Week 1 Lecture.   Question 5 2 / 2 pts (TCO 1) You think you have an ACL set on the gigabitEthernet 0/1. How can you verify this?   show ip protocols   show ip interface brief   show port-security int gi0/1 Correct!   show ip int g0/1 See Chapter 1.2 in the textbook and the Week 1 Lecture.   Question 6 2 / 2 pts (TCO 1) Redundant paths are necessary in today’s networks. However, _____ must be run to prevent Layer 2 loops.   EtherChannel   EIGRP   OSPF Correct!   STP See Chapter 1.1 in the textbook and the Week 1 Lecture.   Question 7 2 / 2 pts (TCO 1) What is the fastest forwarding rate of a switch? Correct!   Wire speed   10 Gb/s   100 Gb/s   1,000 Gb/s See Chapter 1.2 in the textbook and the Week 1 Lecture.   Question 8 2 / 2 pts (TCO 1) What is a benefit of connecting users through a wireless medium?   Decreased number of critical points of failure   Increased bandwidth availability   Better network management options Correct!   Reduced costs See Chapter 1.1 in the textbook and the Week 1 Lecture.   Question 9 4 / 4 pts (TCO 1) What does scaling networks really mean? Your Answer: It is the ability of a network to continue to function well when it is changed in size or volume in order to meet a user need. With this is mind, the scalability should be able to be preformed without interrupting services to the users on the system.  The number of users on a network typically grows over time; therefore, the switch should provide the opportunity for growth.  (Academy 21) Academy, Cisco N.  Scaling Networks Companion Guide . Pearson Learning Solutions, 03/2014. VitalBook file.   See Chapter 1 in the textbook and the Week 1 Lecture. -Can expand quickly to support new users and applications without impacting the performance of the service being offered to existing users -Ability to grow or shrink the network equipment and hierarchical design in a seamless fashion without negative effects to the current network traffic and users -Relatively easy to do when a good hierarchical network design and addressing scheme have been implemented Quiz Score:  20  out of 20 Week 2   Question 1 2 / 2 pts (TCO 1) What is the name of the switch with the lowest BID?   Root ports   Extended ID Correct!   Root bridge   SPA See Chapter 2.1 in the textbook and the Week 2 Lecture.  

NETW | 206 | Introduction to Switching with Lab | assessment | Week 1 Question 1 2 / 2 pts (T

NETW | 206 | Introduction to Switching with Lab | assessment | WEEK 3 QUIZ

NETW208 Week 7 Quiz (TCO 8) A syslog Emergency message has a severity level of _____.   1 rrect!   0   3   None of the above See Connecting Networks Companion Guide, page 355. (TCO 8) A syslog Critical message has a severity level of _____.   0   1 rrect!   2   None of the above See Connecting Networks Companion Guide, page 355. (TCO 8) The command to use on a router to view any messages that are logged is _____.   show messages   show errors rrect!   show logging   None of the above See Connecting Networks Companion Guide, page 362. (TCO 8) There are two primary SNMP manager requests, get and _____.   display orrect!   set   change   None of the above See connecting Networks Companion Guide, page 365. (TCO 8) There are currently _____ versions of SNMP.   2   1 rect!   3   None of the above See Connecting Networks Companion Guide, page 368. (TCO 8) The optional command that can be entered on a router when configuring SNMP to document the area of the device is in is _____.   snmp-server  text Correct!   snmp-server location   text   snmp-server area  text   None of the above See Connecting Networks Companion Guide, page 374. (TCO 8) The latest version of NetFlow is known as _____.   extendable NetFlow   advanced NetFlow   expandable NetFlow Correct!   None of the above See Connecting Networks Companion Guide, page 381. (TCO 8) The command used to capture outgoing NetFlow data for monitoring on an interface is _____.   IP flow ingress Correct!   IP flow egress   IP flow out   None of the above See Connecting Networks Companion Guide, page 385. (TCO 8) A host that is running an application software that allows for the displaying of NetFlow traffic is called a _____.   NetFlow server   NetFlow collector   NetFlow manager   None of the above See Connecting Networks Companion Guide, page 390. (TCO 8) To enable NetFlow data to be sent to the device displaying NetFlow data, the IP address and port number being used must be specified.  The command that configures this on a router is _____.   IP flow-export source  typenumber   IP flow-export destination  ip-address port #. Correct!   IP flow-export destination   ip-address udp-port #   None of the above See Connecting Networks Companion Guide, page 385.

NETW | 208 | Data and Cabling Systems | assessment | NETW208 Week 7 Quiz (TCO 8) A 

Question 1 2 / 2 pts (TCO 1) _____ means that more users can be added to the network without degrading performance for existing users.   Fault tolerance   Server pathways   Quality of service Correct!   Scalability See Chapter 1 in the textbook and the Week 1 Lecture.   Question 2 2 / 2 pts (TCO 1) Establishment of a NOC should be done for a _____ network.   small business   SOHO environment   business of multiple offices in a building Correct!   business enterprise See Chapter 1.1 in the textbook and the Week 1 Lecture.   Question 3 2 / 2 pts (TCO 1) Users connect to the _____ layer of the hierarchical model. Correct!   Access   Collapsed core   Core   Distribution See Chapter 1.1 in the textbook and the Week 1 Lecture.   Question 4 2 / 2 pts (TCO 1) In-band device management is used to monitor and make configuration changes to a network device and _____.   requires a terminal emulation client   requires FTP to access a Cisco device   requires a direct connection to the console or AUX port Correct!   requires a network interface on the device to be connected and operational See Chapter 1.2 in the textbook and the Week 1 Lecture.   Question 5 2 / 2 pts (TCO 1) You want to find the IP address of an interface. How can you quickly do this?   show ip protocols Correct!   show ip interface brief   show port-security ip addr   show ip interfaces See Chapter 1.2 in the textbook and the Week 1 Lecture.   Question 6 2 / 2 pts (TCO 1) Which switch type would have a higher port density?   Multilayer   Fixed configuration Correct!   Modular configuration   Stackable configuration See Chapter 1.2 in the textbook and the Week 1 Lecture.   Question 7 2 / 2 pts (TCO 1) What is the fastest forwarding rate of a switch? Correct!   Wire speed   10 Gb/s   100 Gb/s   1,000 Gb/s See Chapter 1.2 in the textbook and the Week 1 Lecture.   Question 8 2 / 2 pts (TCO 1) What is a benefit of connecting users through a wireless medium?   Decreased number of critical points of failure   Increased bandwidth availability   Better network management options Correct!   Reduced costs See Chapter 1.1 in the textbook and the Week 1 Lecture.   Question 9 Not yet graded / 4 pts (TCO 1) Describe the purpose and give an example of using a verification command that can only be done on a switch. See Chapter 1 in the textbook and the Week 1 Lecture. -show port-security … Use to see switch ports that have been security activated. -show mac-address-table —Displays all MAC addresses that the switch has learned, how those addresses were learned (dynamic/static), the port number, and the VLAN assigned to the port. -(Disallow any of the following which are valid on both routers and switches: show cdp neighbors, show running-config, show startup-config.)

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