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Konstantin V. Kuznetsov
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 Добавлено: 21-11-05 16:48 Заголовок сообщения: Экзамен по курсу S8500&iManager |
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| Цитата: | I.Single choice (Only one answer for each item is right.)
1. Which packet is confirmed by a LSAck packet in OSPF protocol? ( D )
A Hello packet
B Database Description packet
C Link state request packet
D Link state update packet
2. In OSPF protocol, which relationship is correct between normal Router and BDR? ( B )
A Neighbour B Adjacency C friendship D fellowship
3. Which packet includes the whole LSA information packet? ( B )
A Hello packet B Database Description packet
C Link state request packet D Link state update packet
4. For the router that runs OSPF protocol, ROUTER ID is its unique identifier. So the protocol define that, inside ______, the ROUTER ID must be unique. ( C )
A a subnet
B an area
C an autonomous system
D the whole internet
5. Which one of the following expressions correctly describes the routing protocol ? The correct selection is ______. ( A )
[A] This is a kind of protocol that implements route selection by executing an algorithm.
[B] This is a kind of protocol that appoints the bunching mode for MAC address and IP address and time.
[C] This is a kind of mode that defines the domain format and usage in the data packet.
[D] This is a kind of protocol that allows the transfer of data packets between host equipment.
6. “poison reverse ” is .（ C ）
[A] the packet that change route update time
[B] a packet of router running error
[C] a measure to prevent route loop
[D] the protocol to change router priority
7. In RIP protocol, use for calculate the route item metric（ A ）
[A] route hops
[B] bandwidth
[C] time delay
[D] MTU
8. Regarding the D-V routing protocol which is wrong?（ B ）
[A] simple, easy to manage
[B] convergente fast
[C] many packets
[D] need special measure to prevent route loop
9. RIP protocol is based on .（ D ）
[A] Ethernet
[B] IP
[C] TCP
[D] UDP
10. OSPF adopts to transfer data, protocol number is 89.（ A）
[A] IP packet
[B] IPX packet
[C] TCP packet
[D] UDP packet
11. Autonomous system is identified by a bits intenger.（ B ）
[A] 20bit [B] 16bit [C] 20byte [D] 24bye
12. Regarding the routers in the same area is correct.（B ）
[A] The LSA that created by routers are same
[B] The LSDB of each router are same in each router
[C] The shortest path tree of each router is same
[D] The route table obtained from OSPF are same in each router.
13. In a router that running OSPF protocol, one of it’s interface belong to area 0 and another interface belong to area 9. OSPF distribute 5 static routes. This router will create LSA at least.（ D）
[A] 5 [B] 7 [C] 8 [D] 9 [E] 10
14. Among following packets contained detail LSA information（ D ）
[A] Hello Packet
[B] Database Description Packet
[C] Link State Request Packet
[D] Link State Update Packet
[E] Link State Acknowledgmen Packet
15. when select DR、BDR of OSPF is used.（ A ）
[A] Hello Packet
[B] Database Description Packet
[C] Link State Request Packet
[D] Link State Update Packet
[E] Link State Acknowledgmen Packet
16. The route table of router is:
Destination/Mast protocol preferen Metric Nexthop/Interface
9.0.0.0/8 OSPF 10 50 1.1.1.1/Serial0
9.1.0.0/16 RIP 100 5 2.2.2.2/Ethernet0
when router transfer a packet whose destination IP address is 9.1.4.5 which route item should be selected?（ D ）
[A] select first item, because priority of OSPF is higher.
[B] Select second item, because metric of RIP protocol is less
[C] Select second item , because the speed of Ethernet interface is higher than serial0
[D] Select second item, because this item match 9.1.4.5 more bits
17. BGP adopts TCP to transfer data, use port number .（ B ）。
[A] 79 [B] 179 [C] 89 [D] 189
18． In BGP protocol， use for avoid loop（B ）
[A] Attribute Origin record the source of route
[B] Attribute AS-Path record all AS number that transfer
[C] Attribute Next-Hop record nexthope of route
[D] Attribute MED effect to the output interface selection of another AS
19. A router using BGP protocol receive a BGP route and found that attribute AS-Path contain it’s AS number. Router will .（ D ）
[A] Discard this route
[B] Process like normal route
[C] In AS-Path delete the it’s AS number and process like normal route
[D] Discard this route and send Notification packet to it’s neighbor.
20．In OSPF route protocol，the relationship between common router and BDR is .（B ）
[A] Neighbor
[B] Adjacency
[C] have none business
[D] none of above
21. In BGP protocol, route information are contained in packet.（ C ）
[A] Notification
[B] Open
[C] Update
[D] Keeplive
[E] Routing
22. In OSPF protocol, LSAck packet is the acknowledgement of .（ D ）
[A] Hello Packet
[B] Database Description Packet
[C] Link State Request Packet
[D] Link State Update Packet
[E] Link State Acknowledgmen Packet
23. In a network use ODPF protocol, there are three area, area number are 0,1,2. area 1 and area 2 only connect to area 0. area 1 is stub area and area 2 is NSSA area. So .（ D ）
[A] Area 0 maybe contain LSA whose TYPE is 7 because area 0 is backbone area.
[B] Area 0 and area 1 contain LSA whose TYPE is 7
[C] Only area 1 do not contain LSA whose TYPE is 7
[D] Only area 2 contain LSA whose TYPE is 7
24. In RIP protocol, when hopes exceed means this route is unreachable.（ D ）
[A] 10 [B] 15 [C] 20 [D] 16
II. Multiple choice (One or more answers for each item are right.)
1. Among the following, which kinds of packet can be transmitted correctly in OSPF packet? ( B-E )
A Hello Packet B Database Description Packet
C Link State Request Packet D Link State Update Packet
E Link State Acknowledgment Packet
2. According to OSPF protocol, what kinds of message don’t appear in LSDB when Router runs in STUB area? ( D,E )
A Router LSA (Type=1)
B Network LSA (Type=2)
C Network Summary LSA (Type=3)
D ASBR Summary LSA (Type=4)
E AS External LSA (Type=5)
3. dynamic routing protocol include:（ C,E,F ）
[A] Telnet [B] SNAP [C] RIP2
[D] static route [E] OSPF [F] BGP
4. In a OSPF autonomy system .（ A,B ）
[A] must have a backbone area(area ID is 0)
[B] another area must connect to backbone area directly or connect in logic.
[C] The routers of Backbone Areas themselves must be connected to each other.
[D] The routers of normal Areas themselves must be connected to each other.
5. Regarding the concept of area in OSPF，which is wrong?（ D ）
[A] The LSDB is different in different area
[B] Router LSA(Type=1) contain area information to identify it’s area.
[C] Area ID is a 32 bits integer and must be unique in autonomy system.
[D] Area ID should be distribute by international organization.
6. Regarding the DR（Designated Router） in OSPF protocol which are correct?（ C,D ）
[A] DR is appointed by system administrator.
[B] DR is select by the router in the same network.
[C] DR is the router whose priority is highest and Router ID is biggest in the network
[D] a router can be configured to cannot be DR.
7. support VLSM. ( B,D )
[A] RIP
[B] RIPv2
[C] IS-IS
[D] OSPF
8. which network type appear in OSPF protocol.（ A,D,E ）
[A] point to point
[B] multi-point to multi-point
[C] point to multi-point
[D] broadcast network
[E] NBMA
9. Regarding Virtual Link of OSPF， is correct.（C,B ）
[A] Virtual link can not through stub area
[B] Virtual link can not through backbone area
[C] Virtual link can not through several area
[D] One transit area Only can contain one virtual link.
III、 Fill in blanks
.
1. BGP protocol has four kinds of message __OPEN_, _UPDATE__, __KEEPALIVE, _NOTIFY_.
2. In OSPF protocol _ Router ID _ is the identity of router, so it should be unique in ____AS____
3. In BGP protocol, autonomy system is identify by a 16 BIT integer .
4. following is the routing protocol in common use： OSPF，BGP4，EGP,
1） link statute routing protocol： __OSPF
2）D-V algorithmic protocol： ____BGP4, EGP_______
3）IGP： ____ OSPF
5）EGP： ___BGP, EGP_
5. In BGP protocol attribute ____AS PATH ______ use for avoid loop.
6. RIP protocol adopts split horizon triggered updata __hold-down timer____ ___poison reverse to eliminate loop
V Questions
1. Q: Please write out 5 types of LAS message in common OSPF protocol.
A: 1. rtr_LSA 2. net_LSA 3. netsum_LSA 4. asbrsum_LSA 5. ASE_LSA
II.Single choice (Only one answer for each item is right.)
1. Regarding the Ethernet switch is correct.（ B ）
[A] Ethernet switch work in network layer.
[B] Ethernet switch is based on 802.1D.
[C] STP protocol match the requirement of building virtual private network
[D] Use Ethernet switch can prevent confliction.
2. If two Ethernet switch use two cable connect each other which protocol should be used.（ D ）
[A] MAC sub layer Bridge
[B] Source Route Bridge
[C] Transparence Bridge
[D] STP protocol
3. If the priority of bridges are the same, which bridge will be selected to be the root bridge（ A ）
[A] The bridge whose MAC address is least
[B] The bridge whose MAC address is largest
[C] The bridge whose port priority is highest
[D] The bridge whose port priority is lowest
4. In LAN Switch which using ______ switch mode, every frame that it transfer will be checked by CRC.( B )
[A] Cut-through [B] Store and forward
[C] FragmentCheck [D] FragmentFree
5. VLAN can not be define base on .（ D ）
[A] Port
[B] MAC address
[C] Protocol
[D] Location
6. A VLAN can be tread as a （ B ）
[A] Conflict domain
[B] Broadcast domain
[C] Management domain
[D] Autonomy domain
II. Multiple choice (One or more answers for each item are right.)
1. Regarding the TRUNK function are correct.（ AC ）；
[A] Using TRUNK function can increase the bandwidth between LAN switch and server.
[B] Because there is loopback in the network when use TRUNK, it may cause network storm.
[C] It is easy to realize traffic load sharing when use TRUNK.
[D] It need to shutdown STP function before use TRUNK function.
2. VLAN can be treat as a ，each port of Ethernet interface can be treat as .（ AB ）
[A] Conflict domain
[B] Broadcast domain
[C] Management domain
[D] autonomy domain
3. VLAN can be define base on （ AC ）
[A] port
[B] MAC address
[C] Protocol
[D] Location
4. IEEE 802.1Q can be used in .（ AB ）
[A] fast Ethernet [B] 1000M Ethernet
[C] FDDI [D] token ring
5. Regarding tagged port are correct.（ AD ）
[A] The frame will be added a PVID after it is received by UNTAGGED port.
[B] The frame will be removed TAG header when it is sent by UNTAGGED port.
[C] The frame that already have TAG header will be added a PVID after it is received by TAGGED port.
[D] The frame that is sent by TAGGED port have TAG header.
6. S3526 provide interface module.（ ABC ）
[A] 1000Base-SX [B] 1000Base-LX [C] 1000Base-T
7. One layer two switch whose ID is 92 have five Ethernet interface: a,b,c,d,e, all of them use STP protocol. They receive STP configuration message are: a(81,0,81)，b(41,19,125)，c(41,12,315)，d(41,12,111)，e(41,13,90)。So the root port is D ， block port is CE ，（ ）
[A] a [B] b [C] c [D] d [E] e
8. the advantage of VLAN include:（ A-D ）
[A] control broadcast storm
[B] separate user group
[C] enhance security of network
[D] no need consider user’s location
III.Single choice (Only one answer for each item is right.)
1. "Quidway#", the router prompt indicates that you are in ____ mode. （ D ）
A user
B configure
C enabled
D privileged
2. Which command will display the IP address assigned to a router interface?( D )
[A] find IP
[B] show addresses
[C] configure interface
[D] show running-configuration
3. Which show interface serial 1 status statement indicates that the shutdown command was issued on that interface? ( D )
[A]. Serial 1 is up, line protocol is up.
[B]. Serial 1 is up, line protocol is down.
[C]. Serial 1 is down, line protocol is down.
[D]. Serial 1 is administratively down, the line protocol is down.
4. As the following route table,
Destination/Mast protocol preference Metric Nexthop/Interface
1. 9.0.0.0/8 OSPF 10 50 1.1.1.1/Serial0
9.1.0.0/16 RIP 100 5 2.2.2.2/Ethernet0
when the router receves a packet with destination address of 9.1.4.5,which statement is correct ? ( D )
A Choose first route,because OSPF’s preference is higer than RIP’s
B Choose second route,because RIP’s metric is less than OSPF’s
C Choose second route,because ethernet interface is faster than serial0
D Choose second route,because the destination address matching is more accurate than the first one
5. PING host 202.38.160.2 successful，router will display:（ A ）
[A] Reply from 202.38.160.2 ......
[B] Non-existent address
[C] Timeout
[D] Unreachable
IV.Single choice (Only one answer for each item is right.)
1. The transport layer protocol that SNMP protocol use is （ B ）
[A] TCP
[B] UDP
[C] SNMP
[D] IP
2. is not the snmp packet.( D )
[A] Get-request [B] Get-next-request
[C] Set-request [D] Set-next-request
3. SNMP Agent adopts to communicate, port number is .（ C）
[A] TCP，161 [B] TCP，162 [C] UDP，161 [D] UDP，162
4. SNMP TRAP adopts to report failure, port number is .（ B ）
[A] UDP，161 [B] UDP，162
[C] TCP，161 [D] TCP，162
II. Multiple choice (One or more answers for each item are right.)
1. Among following which relate to security of SNMP protocol?（BC ）
[A] it need to key in user name and password when operate the equipment.
[B] SNMP community
[C] access control
2. Which is included in SNMP PDU?（ ABCDF ）
[A] GetRequest PDU
[B] GetNextRequest PDU
[C] GetResponse PDU
[D] SetRequest PDU
[E] SetResponse PDU
[F] Trap PDU
3. In SNMP protocol，the packet that NMS（Network Management Station) send to （Agent） include:（ ABC ）
[A] GET [B] GET NEXT [C] SET [D] REQUEST
Totally 66 questions. 4 wrong, 6 not entire.
Results: 89,4% success.< |
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Сообщения: 470
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Konstantin V. Kuznetsov
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| Добавлено: 21-11-05 16:55 Заголовок сообщения: |
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В скобочках либо правильные ответы, либо мои ответы. ХЗ короче 
Для сдачи необходимо набрать 60% правильных ответов.
Но это все условности. Сертификат дадут палюбому |
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Сообщения: 470
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pegas
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| Добавлено: 21-11-05 18:42 Заголовок сообщения: |
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| Поздравляю. Туалет теперь престижно смотреться будет :-). |
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Сообщения: 1234
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Konstantin V. Kuznetsov
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| Добавлено: 21-11-05 19:00 Заголовок сообщения: |
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pegas не смог не съязвить.
Я вообще-то это выкладывал по просьбе и для тех, кто след. поедет на эти курсы. |
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Сообщения: 470
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pegas
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| Добавлено: 22-11-05 09:53 Заголовок сообщения: |
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| Konstantin V. Kuznetsov писал(а): | pegas не смог не съязвить.
Я вообще-то это выкладывал по просьбе и для тех, кто след. поедет на эти курсы. |
Извини, не хотел обидеть дружеским сарказмом :-)
На самом деле, инфа весьма интересная и полезная, спасибо. |
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