3. METODOLOGIA UTILIZADA: CATIA Y EL METODO DE ELEMENTOS FINITOS
3.1. Geometría de la pieza y material
The Q & A questions are more difficult than what you can expect on the actual exam. The questions do not attempt to cover more breadth or depth than the exam; however, they are designed to make sure that you retain the material. Rather than allowing you to derive the answer from clues hidden inside the question itself, these questions challenge your understanding and recall of the subject. Questions from the “Do I Know This Already?” quiz are repeated here to ensure that you have mastered the chapter’s topic areas. A strong understanding of the answers to these questions will help you on the CCIE written exam. As an additional study aide, use the CD-ROM provided with this book to take simulated exams.
Select the best answer. Answers to these questions are in the Appendix, “Answers to Quiz Questions.”
1 Routers limit network traffic by controlling what?
a. DNS domain b. Broadcast domain
c. Microsoft broadcast domains d. Novell SAP broadcasts
2 Which layer of the OSI model is responsible for converting frames into bits and bits into frames?
a. Network layer b. Physical layer c. Data-link layer d. LLC layer
3 Which scheme suppresses a route announcement out an interface from which the route
was learned? a. Holddowns b. Split horizon c. Poison reverse d. Passive interface
Q & A 53
4 Convert the following IP address into dotted decimal format: 10100010001011010001100111000000
a. 162.46.24.128 b. 162.45.25.92 c. 161.45.25.192 d. 162.45.25.192
5 List the routing protocols that support VLSM.
a. IGRP, EIGRP, OSPF, IS-IS b. RIPv2, EIGRP, OSPF, IS-IS c. EIGRP, OSPF, IS-IS, IGRP d. EIGRP, OSPF, RIPv2, IGRP
6 When you have configured your router for EIGRP routing, how do you configure the
gateway of last resort?
a. Use the ip default-gateway command.
b. Use the ip-default gateway command.
c. Use the ip default-network command.
d. Use the ip default-gateway-network command.
7 If a Token Ring has been configured with ring number 24, what is its hexadecimal
equivalent? a. 0x18 b. 0x24 c. 0x16 d. 0x10
8 Which layer of the hierarchical design model implements access lists, distribution lists, route summarization, VLAN routing, security policy, and address aggregation?
a. Session layer b. Distribution layer c. Transport layer d. Core layer
9 Which routing protocol periodically sends its routing table to its neighbors? a. A hierarchical routing protocol
b. A hybrid routing protocol c. A link-state routing protocol d. A distance vector routing protocol
10 The switch functions of blocking and forwarding, which are based on a MAC address,
operates in which layer of the OSI model? a. Layer 3
b. Network layer c. Data-link layer d. Layer 1
11 Which is the best measurement of reliability and load of an interface? a. Rely 255/255, load 1/255
b. Rely 255/255, load 255/255 c. Rely 1/255, load 1/255 d. Rely 1/255, load 255/255
12 Which OSI layer deals with frames?
a. Physical layer b. Layer 4 c. Network layer d. Data-link layer
13 Which type of routing protocol do you use between autonomous systems?
a. Interior Gateway Protocol b. Exterior gateway protocol
c. Interior Gateway Routing Protocol d. Nonrouting exterior gateway protocol
Q & A 55
14 Which layer of the OSI model is concerned with data representation, data compression
schemes, encryption, and voice coding? a. Session layer
b. Presentation layer c. Data-link layer d. Physical layer
15 Which metric is concerned with the time a packet takes to travel from one end to another in the internetwork?
a. Cost b. Reliability c. Delay d. Load
16 Which summary route aggregates the following networks: 192.168.33.0/24,
192.168.32.0/25, 192.168.32.128/25, 192.168.34.0/23? a. 192.168.33.0/22
b. 192.168.32.0/22 c. 192.168.30.0/22 d. 192.168.32.0/21
17 Which device controls collision domains but does not control broadcast domains?
a. Bridges
b. Hubs with Ethernet ports c. Routers
d. Forwarding gateways
18 Which routing protocol requires a hierarchical topology?
a. IGRP b. RIP c. EIGRP d. OSPF
19 Which layer of the OSI model does TCP operate in? a. Layer 3 b. Layer 4 c. Layer 5 d. Layer 6 20 Convert 11011011 to decimal. a. 199 b. 215 c. 219 d. 217
21 Which OSI layer operates with packets?
a. Physical layer b. Core layer c. Network layer d. Distribution layer
22 For what metric is the value for a 10 Mbps Ethernet interface calculated as 108 / 107 = 10? a. Cost
b. Hop count c. Bandwidth d. Load
23 In which type of routing protocol does each router advertise its status to all routers in the network, and each router calculates the best routes in the network.
a. Hop count b. Link-state c. Distance vector d. Hybrid state
Q & A 57
24 Which command can be used to configure the default route out interface serial 0?
a. ip default-gateway serial0 b. ip default 0.0.0.0 0.0.0.0 serial 0 c. ip default-network serial 0 d. ip route 0.0.0.0 0.0.0.0 serial 0 25 What is 0xFC in decimal? a. 240 b. 248 c. 253 d. 252
26 A routing protocol that sends out routes with an unreachable metric is using what? a. Metric holddowns
b. Poison reverse c. Route updates d. Simple split horizon
27 Which hierarchical design model layer has high-speed backbone ATM switches with
redundant connections? a. Data-link layer b. Core layer c. Network layer d. Transport layer
28 Convert the mask 255.255.255.224 into binary.
a. 11111111 11111111 11111111 11000000 b. 11111111 11111111 11111111 11110000 c. 11111111 11111111 11111111 11100000 d. 00000000 00000000 00000000 00111111
29 What does OSI stand for?
a. Operation System Interconnection b. Open System Interconnection c. Open Systems Interconnect d. Operation Systems Interconnect
30 Which of the following routing protocols is classful? a. IGRP
b. RIPv2 c. EIGRP d. OSPF
Scenario 59
Scenario
Answer the following questions based on Figure 2-11. Each question tests your knowledge of how different metrics affect the chosen route to a destination. Answers to these questions are in the Appendix, “Answers to Quiz Questions.”
Figure 2-11 Scenario Diagram
1 A user performs a Telnet from PC 1 to PC 2. If the metric that the configured routing protocol uses is bandwidth, which route will the packets take?
a. Route 1. b. Route 2.
c. Neither, there is not sufficient information.
d. One packet takes Route 1, the following packet takes Route 2, and so on.
2 A user performs a Telnet from PC 1 to PC 2. If the metric that the configured routing protocol uses is hop count, which route will the packets take?
a. Route 1. b. Route 2.
c. Neither, there is not sufficient information.
d. One packet takes Route 1, the following packet takes Route 2, and so on.
3 A user performs a Telnet from PC 1 to PC 2. If the metric that the configured routing protocol uses is cost, which route will the packets take?
a. Route 1. b. Route 2.
c. Neither, there is not sufficient information.
d. One packet takes Route 1, the following packet takes Route 2, and so on.
Route 2 256 kbps T1 T1 Route 1 512 kbps PC1 PC2
This chapter covers the following topics needed to master the CCIE Routing and Switching (R&S) written exam:
•
Infrastructure—Review device CPU, configuration register, and memorycomponents, such as dynamic random-access memory (DRAM), nonvolatile (NVRAM), and flash memory
•
Router modes—Review the user exec, privileged exec, and read-only memory(ROM) monitor router environments
•
Router operations—Review image and configuration file transfers, router access,and password management