lehuy0305's Blog

Thông tin cá nhân

lehuy0305
Họ tên: Lê Thanh Huy
Nghề nghiệp: Developer PHP
Sinh nhật: 3 Tháng 5
Nơi ở: Hà Nội
Trạng thái: User is offline (Vắng mặt)
Thêm vào nhóm bạn bè
Gửi tin nhắn
Chào tất cả các bạn!************ ^_^ *********** !Dù Thế Nào Đi Nữa*******Anh vẫn mãi yêu em,Ngốc ạ!*************

Xem theo danh mục
Xem theo danh mục:
     


Tìm kiếm:
     

Thực đơn người xem
Thêm lehuy0305 vào sổ địa chỉ
Gửi tin nhắn cho lehuy0305
Gửi email cho lehuy0305
Xem thông tin về lehuy0305
Kho lưu trữ


Bài viết cuối
Thiết kế website bất động sản
Thiết kế website du lịch
Công ty thiết kế web chuẩn SEO
Thiết kế website giá rẻ
Thiết kế website chuyên nghiệp
Phan So
Menu chương trình
In ra cac so nguyen to tu 1000 den 2000
CountChar.java
TestCar.java

CHBTNSB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Tik Tik Tak ! ^_^..........?

Bình luận mới
nguyen phuc trong Phan So
Guest_phuc_* trong Phan So
nguyen phu trong Phan So
lehuy0305 trong Chuyện Net!
lehuy0305 trong Chuyện Net!
lehuy0305 trong Đọc đi!
lehuy0305 trong Anh khờ.
lehuy0305 trong Anh khờ.
lehuy0305 trong Những câu nói bất hủ!!!!
lehuy0305 trong Những câu nói bất hủ!!!!

Practice Final_S3

   Trong: CCNA
 
Feb 29 2008, 06:58 PM     Bởi: Guest_Lehuy0305_*
1.
Which three interior routing protocols support VLSM? (Choose three.)
OSPF
RIP v1
RIP v2
EIGRP
BGP
STP
2.
Which of the following are considered limitations of RIP v1? (Choose three.)
It does not support authentication.
It sends updates as broadcasts on 255.255.255.255.
It does not send subnet mask information in its updates.
It is not widely supported in multivendor routing environments.
It does not support equal-cost load balancing.
3.
How are RIP v1 and RIP v2 similar to one another? (Choose three.)
They both use hop count as a metric.
They both have the same metric value for infinite distance.
They both broadcast their updates to their neighbors.
They both send subnet mask information in their updates.
They both provide for authentication of update sources.
They both use split horizon to prevent routing loops.
4.
Users are complaining that resources housed on a remote network have become unavailable. Which command can the administrator use to check whether this destination network is known to the local router?
router# show ip route
router# show route
router# show ip rip
router# show rip
router# show protocol
5.
What is the purpose of a default route?
A default route will cause packets addressed to unknown destination networks to be dropped.
A default route will cause packets addressed to unknown destination networks to be sent to a designated router interface.
A default route will cause packets addressed to known destinations to prefer a specified path to the destination network.
A default route will direct packets for all destination networks to a designated router and router interface.
6.
The network 192.1.1.0 has been subnetted for a network design. The 192.1.1.16/28 subnet has been chosen for further subnetting to provide for point-to-point serial link addressing. How many serial link subnets can be created while minimizing the number of wasted addresses?
1
2
4
6
8
16
7.


A Class C address has been assigned for use in the network shown in the graphic. Using VLSM, which bit mask should be used to most efficiently provide for the number of host addresses required by Router C, while wasting the fewest addresses?
/31
/30
/29
/28
/27
/26
8.
Router XYZ is to be added to OSPF area 0. Which of the following is the correct syntax for enabling OSPF on this router?
XYZ(config)# router ospf
XYZ(config)# router ospf 0
XYZ(config)# router ospf 10
XYZ(config)# router ospf process 0
XYZ(config)# router ospf process 10
XYZ(config)# router ospf processid 10
9.
Which of the following is the metric that OSPF uses to determine the best route to a destination network?
administrative distance
cost
hop count
link delay
10.
Under which of the following circumstances might two routers have trouble establishing a neighbor relationship in an OSPF network? (Choose three.)
Hello packets are not sent from either neighbor.
The interfaces are on different network types.
The network command has put the connected interfaces into the same OSPF area.
Slow network connections cause OSPF advertisements to time out.
Authentication passwords or keys are different.
11.


Refer to the topology and link path costs shown in the graphic. What is the total cost of the path that OSPF will use between the Data_Center router and the BldgA router?
2
11
12
65
66
12.
What is required for OSPF routers to share routing information?
designated routers
a backup designated router
neighbor adjacencies
an NBMA network topology
links configured on the 224.0.0.0 network
13.
Which of the following are characteristics of link-state routing protocols? (Choose three.)
collection of routing information from within a defined area of the network
view of network from neighbor's perspective
independent calculation of best paths to all destinations
propagation of incorrect information minimized
demonstration of universal compatibility and simplicity
14.
Which of the following statements about link-state advertisements are correct? (Choose three.)
LSAs are sent to neighboring routers on a regular basis.
LSAs are used by a router to determine if a neighboring router is online.
LSAs are multicast to all routers in the area.
LSAs contain the topological database of the sending router.
Routers use LSAs to learn about the topology of the entire network.
LSAs are sent when the router detects a topology change.
15.
Which type of address does OSPF use to initiate new adjacencies and to ensure that neighbor routers are functioning?
broadcast
loopback
multicast
unicast
16.


What will be the result of OSPF DR/BDR elections in the network shown in the diagram? (Choose three.)
R1 will be the DR for the 10.1.1.0/24 network.
R1 will be the DR for the 10.1.2.0/24 network.
R1 will be the DR for the 10.1.3.0/24 network.
R2 will be the DR for the 10.1.1.0/24 network.
R3 will be the DR for the 10.1.2.0/24 network.
R4 will be the DR for the 10.1.3.0/24 network.
17.
If EIGRP routing is employed and the successor route to a destination becomes unreachable or unreliable, which of the following would be used as a replacement?
the route flagged as active in the topology table
the feasible successor route in the topology table
the default gateway in the neighbor table
the primary designated route in the topology table
the backup designated router in the routing table
18.
What is indicated when an EIGRP route is in the passive state?
The route has the highest path cost of all routes to that destination network.
The route must be confirmed by neighboring routers before it is put in the active state.
The route is a feasible successor and will be used if the active route fails.
There is no activity on the route to that network.
The route is viable and can be used to forward traffic.
19.
Which algorithm does EIGRP use to calculate routes?
PDM
RTP
DUAL
LSA
20.
Which of the following tables does DUAL use to calculate the lowest cost routes to each destination?
routing table and topology table
neighbor table and routing table
neighbor table and topology table
neighbor table and adjacency table
21.


How many collision domains will there be in the entire network shown in the graphic if Hub1 is replaced with a Layer 2 switch?
2
3
4
7
8
10
22.
How does an Ethernet switch improve network performance? (Choose three.)
allows multiple frames to be forwarded simultaneously
decreases the number of broadcast domains
increases network latency
eliminates unnecessary broadcast frames
reduces the size of collision domains
increases the number of collision domains
23.


An Ethernet switch has developed the CAM table shown. What action will the switch take when it receives the frame shown at the bottom of the graphic?
forward the frame out all interfaces except Interface3
add station 00-00-3D-1F-11-05 to Interface2 in the forwarding table
forward the frame out Interface3
discard the frame
forward the frame out all interfaces
forward the frame out Interface2
24.
Which Ethernet device has the highest latency factor?
transceiver
hub
MAU
router
switch
25.
Which of the following statements regarding server placement are correct? (Choose two.)
Enterprise servers should be located in the MDF.
Enterprise servers should be located in an IDF.
Workgroup servers should be located in the MDF.
Workgroup servers should be located in an IDF.
Both workgroup and enterprise servers should be located in the MDF.
Both workgroup and enterprise servers should be located in an IDF.
26.
Which of the following are features of the distribution layer? (Choose three.)
VLAN routing
MAC layer filtering
security
microsegmentation
packet filtering with access control lists
workgroup access
27.
Which of the following are layers in the hierarchical design model? (Choose three.)
gateway
access
distribution
network
core
domain
28.
Which LAN design requirement addresses user-to user and user-to-application connectivity?
adaptability
manageability
scalability
functionality
29.
What is the minimum amount of bandwidth that Layer 2 LAN switches should provide to servers?
1 Mbps
10 Mbps
100 Mbps
1000 Mbps
1 Gbps
30.
Which distribution layer devices enhance Layer 2 switching with Layer 3 functionality? (Choose two.)
multilayer routers
multilayer switches
bridges
managed hubs
VLANs
a switch with a router module
31.
What affects network availability? (Choose three.)
location
throughput
user proficiency
response time
workstation speed
access to resources
32.
When the mode LED on a Cisco switch is set to STAT, what port status is indicated by a green flashing port LED?
no link
port is not forwarding
port is sending or receiving data
port is sending, but not receiving
link fault
33.
How can MAC address table entries be removed from a switch? (Choose two.)
Power cycle the switch to clear all dynamically learned addresses.
The clear switching-tables command will remove statically configured entries.
The clear mac-address-table command will remove statically and dynamically configured table entries.
The erase flash command will clear all statically configured table entries.
Statically configured MAC addresses will automatically be removed from the address table 300 minutes after the last activity on a switch port.
34.
Which of the following statements are correct concerning the default configuration of a new switch? (Choose three.)
VLAN1 is configured with a management IP address.
All switch ports are assigned to VLAN1.
Spanning Tree Protocol is disabled.
All interfaces are set to auto.
Enable password is configured as cisco.
The flash directory contains the IOS image.
35.
Which command is used to copy a backup configuration file from a server to the non-volatile memory of a switch?
Switch# copy startup-config tftp
Switch# copy tftp startup-config
Switch# copy NVRAM tftp
Switch# copy tftp NVRAM
Switch# copy tftp flash
36.
An entire workgroup has lost network connectivity. After shutting down and restarting the workgroup switch in the wiring closet, it is observed that the switch system LED is amber. What should be done?
The switch should be reconfigured.
The switch should be replaced in order to restore connectivity to the workgroup.
The switch should be allowed to complete POST before its configuration is checked.
The switch has returned to service, however its configuration should be checked.
37.
Using Telnet, a network administrator is unable to log in to a switch located at another office in order to make configuration changes to it. What could be the problem?
The managmement station does not have access to a full-duplex Fast Ethernet link on the switch.
VLAN 1 on the switch is not configured for TCP/IP network access.
The switch must be managed from the local LAN.
The switch hostname has not been set.
38.
A switched Ethernet network is experiencing unusually heavy traffic to the extent that network delays have become intolerable. While investigating the problem, a network administrator disconnects a redundant uplink between two switches. The excessive traffic quickly subsides. What was the likely cause of this problem?
broadcast storms
routing loops
multiple frame copies
load balancing
unicast frame forwarding
39.
A redundant switched topology is being installed in an enterprise. Which of the following should be configured to ensure that this network operates efficiently?
TTL
STP
BID
BPDU
ARP
40.
In which STP state does a switch port only receive BPDUs?
blocking
learning
disabled
listening
forwarding
41.
Which strategies can a company take to enhance network reliability through redundancy? (Choose two.)
Eliminate single points of failure.
Flood frames for unknown destinations.
Send multiple frames to an end device.
Design alternate routes to a destination.
Forward MAC address tables to all switches on the network.
Eliminate multiple paths to the same destination.
42.
Which of the following are performed by a switch port that is in the forwarding state in an STP network? (Choose three.)
discarding data traffic
receiving data traffic
forwarding data traffic
recalculating BPDUs
receiving BPDUs
blocking BPDUs
43.


Which of the switches shown in the graphic will be elected as the root bridge of the spanning tree topology?
Cat-A
Cat-B
Cat-C
Cat-D
44.
The spanning tree election process has taken place on a network containing five bridges. How many total root bridges have been elected?
1
3
5
one per trunk port
45.
While deleting the VLANs from a switch, a network administrator receives the following message, "A default VLAN may not be deleted". What did the administrator do to cause this message to be displayed?
The no vlan all command was entered.
The no switchport mode access command was not properly entered.
The no vlan 1 command was entered.
The no vlan command was entered in database configuration mode.
The no default vlan command was entered.
The administrator attempted to delete a VLAN that still has switch ports assigned to it.
46.
A new color laser printer has been configured on the Marketing VLAN. Users on the Sales VLAN would also like to have access to this printer. What must be done in order for the Sales department users to be able to access this device?
A root bridge must be elected to allow the traffic to cross.
A bridge must be configured with a compatible bridging protocol.
A router must be installed and configured to connect the VLANs.
No traffic should be allowed to pass between VLANs.
The print server must be configured to accept connections over VTP.
47.
Which VLAN implementation method requires less administration in the wiring closet and can provide notification if an unauthorized user attempts to connect to the network?
port-centric
static
dynamic
geographic
48.
Which of the following statements describe trunking? (Choose two.)
Trunking bundles multiple virtual links over one physical link.
Trunking decreases the number of switch ports available for hosts.
Trunking complicates the physical interconnection of switches in the wiring closet.
Trunks can be configured to carry traffic for several VLANs between switches.
Trunking requires one switch port for each configured VLAN.
49.
Which of the following are characteristics of a router-on-a-stick design for inter-VLAN routing? (Choose three.)
multiple logical route

 

> Trả lời nhanh
Bình luận của bạn sẽ được đăng sau khi chủ blog kiểm duyệt và chấp nhận
Nhập vào tên của bạn:
Nhập mã số xác nhận (bắt buộc):
» Hiển thị cửa sổ mặt cười       » Download bộ gõ tiếng Việt Unikey
 Bạn có muốn chuyển các ký hiệu như :) :( :D ...thành mặt cười trong bài viết này?
 Bạn có muốn chèn thêm chữ ký vào bài viết này ?
 

Trả lời ở chế độ đầy đủ

« Các bài cũ hơn · lehuy0305's Blog · Các bài mới hơn »
 
Lượt xem thứ:





Mạng xã hội của người Việt Nam.
VnVista I-Shine © 2005 - 2024 VnVista.com