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思科网院考试题库

思科网院考试题库
思科网院考试题库

思科网院考试题库

CCNA1 - Module 2

CCNA1 - Module 2

1

Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two.)

Network

Transport

Physical**

Data Link**

Session

2

What is a primary function of the trailer information added by the data link layer encapsulation?

supports error detection**

ensures ordered arrival of data

provides delivery to correct destination

identifies the devices on the local network

assists intermediary devices with processing and path selection

3

During the encapsulation process, what occurs at the data link layer? No address is added.

The logical address is added.

The physical address is added.**

The process port number is added.

4

What device is considered an intermediary device?

file server

IP phone

laptop

printer

switch**

5

Which layer encapsulates the segment into packets?

physical

data link**

network

transport

6

Which statements correctly identify the role of intermediary devices in the network? (Choose three.)

determine pathways for data**

initiate data communications

retime and retransmit data signals**

originate the flow of data

manage data flows**

final termination point for data flow

7

What can be identified by examining the network layer header?

the destination device on the local media

the path to use to reach the destination host**

the bits that will be transferred over the media

the source application or process creating the data

8

What is the proper order of the layers of the OSI model from the highest layer to the lowest layer?

physical, network, application, data link, presentation, session, transport

application, physical, session, transport, network, data link, presentation

application, presentation, physical, session, data link, transport, network

application, presentation, session, transport, network, data link, physical**

presentation, data link, session, transport, network, physical, application

9

Refer to the exhibit. Which three labels correctly identify the network types for the network segments that are shown? (Choose three.) Network A -- WAN

Network B -- WAN**

Network C -- LAN**

Network B -- MAN

思科认证CCNP经典试题

第一部分填空题 1、在Cisco体系的IGP协议中,RIP的A-D管理距离是,EIGRP的域内A-D管理距离是,EIGRP的域外A-D管理距离是OSPF的A-D管理距离是。BGP 从EBGP学习到的路由学到路由的A-D管理距离是; BGP从IBGP学习到的路由学到路由的A-D管理距离是。 2、BGP的默认MED值为;其中MED越越优选被用于选路;BGP从邻居哪里学到的权重为;BGP自己本路由产生的路由(始发路由)产生权重是;BGP 的默认本地优先级为:。 3、BGP的邻居分为和。 4、OSPF在那个区域(有区域0,区域1,区域2)广播多路访问(比如以太网,没有出现外部网络),在区域0可以看到类LSA。如果想看到2类LSA,必须在网络类型;在NSSA区域可以看到类LSA,在纯粹的NASS区域内是否有5类LSA?(回答是或者否)。 5、HSRP包括哪六种状态? 6、OSPF在MA网络链路类型的HELLO报文作用?(3种) 7、IPV6的本地链路地址是;本地站点地址是。(没有/10的写法) 8、在选择STP的角色(身份)有哪些?,默认STP的收敛时间为。配置了portfast后,收敛时间会小于。 9、OSPF发送hello包的组播地址是,EIGRP组播地址是;HSRP发送hello包组播地址是;VRRP发送hello 包的组播地址是。 10、目前以太通道最多可以使用条物理线缆逻辑捆绑成一个以太通道接口?形成以太通道方式有。 11、BGP在EBGP中使用属性避免AS间的环路(确保无环),该属性属于BGP的必遵属性,其中还有哪两个是BGP公认必遵属性为和。 第二部分选择 1、在对基于CEF的多层交换(MLS)进行排错的时候,例如解决无法到达特定的IP目标 等问题,首先需要先查看哪两张表去验证错误?() A、IP路由表和路由表 B、IP路由和CEF邻接关系表 C、TCAM中的IP CEF FIB和邻接关系表 D、IP路由表和ARP表 2、EIGRP位一个混合距离矢量协议,在METRIC值中使用K1-K5五个K值,默认情况下,使用K值分别是() A、K1,K2 B K3,K4 C、K1,K5 D、K1,K3 3、OSPF中router-id能标识一台设备的身份,下面说法正确的是() A、先选举手工配置,然后选择设备loopback地址大的,在选运行了宣告进OSPF最大的物理接口最大的地址。 B、先选择设备loopback地址大的,然后选举手工配置,在选运行了宣告进OSPF最大的物理接口最大的地址。 C、先选举手工配置,然后选择设备loopback地址大的,在选设备的物理接口UP最大的地址。 D、在ipv6中router-id选择跟ipv4一样,当router-ID必须是ipv6地址。 4、在下列哪些情况下,管理员在多层交换机配置命令IP routing?() A、当Svi正在为某个给定的VLAN提供交换机IP连接时。

(完整版)思科题库2(修改)

1:PDU 封装的正确顺序是什么? 2:建立融合网络有何用途?

3: 请参见图示。哪个区域最有可能是图中所示的公司网络的外联网? 4:主机正在访问远程网络的FTP 服务器。中间网络设备在此对话中起到哪三个作用?(请选择三项。)

5一位家庭用户想要使用能够在普通电话线路上提供快速数字传输的ISP 连接。应选择哪种ISP 连接类型? 6:在学校网络上,学生可以浏览网页、搜索图书馆数据库,还可以和日本的姊妹学校一起参加音频会议。如果使用QoS 为网络流量排列优先顺序,这些流量的优先级从高到低如何排列? 7:管理员在发出ping命令之后在交换机上使用Ctrl-Shift-6 键组合。使用这些按键有什么用途?

8:OSI 模型的物理层有什么重要功能? 9:下列哪个程序用于降低铜缆中的串扰影响? 10:如果收到的帧的目的MAC 地址不在MAC 表中,第2 层交换机将执行什么操作? 11:一名技术人员使用ping 127.0.0.1命令。该技术人员在测试什么内容?

12:交换机上的auto-MDIX 功能是什么? 13:在传输过程中,IPv4 数据包报头中的哪个字段通常会保持不变? 14:路由器将按哪个默认顺序搜索启动配置信息? 15:当有多个可用路由时,路由器使用哪项参数来选择到达目的网络的路径?

16:在正常操作中,大多数思科路由器从哪个位置运行IOS? 17:哪种连接能为思科路由器提供加密的安全CLI 会话? 18:为了能够远程管理交换机,管理员可用以下哪条命令配置远程访问地址? 19:下列哪个PC 地址在PC 移动到其他网络时也不会改变?

ccna考试题库101-125

QUESTION 101 Refer to the exhibit. The switch in the graphic has a default configuration and the MAC table is fully populated. In addition, this network is operating properly. The graphic represents selected header information in a frame leaving host A. What can be concluded from this information A. The MAC address of host A is B. The router will forward the packet in this frame to the Internet. C. The switch will only forward this frame to the attached router interface. D. All devices in this LAN except host A will pass the packet to Layer 3. QUESTION 102 What is an appropriate use of a default route A. to provide routing to a local web server B. to provide routing from an ISP to a stub network C. to provide routing that will override the configured dynamic routing protocol D. to provide routing to a destination that is not specified in the routing table and which is outside the local network QUESTION 103 Refer to the exhibit. A junior network engineer has prepared the exhibited configuration file. What two statements are true of the planned configuration for interface fa0/1 (Choose two.)

2019年 思科ITE 3,4,5,6章考试原题及答案_共12页

清洁计算机内部可以减少以下哪种负面环境因素? 灰尘 在清洁计算机机箱内部时,直接喷射压缩空气容易损坏下列哪种组件? 风扇 在生产车间,一个家具工厂用笔记本电脑来实现进程监控和报告。生产车间的环境温度大约为27 摄氏度(80 华氏度)。湿度相当高,大约为70%。风扇安装在通风口顶部。这里的木屑灰尘非常多。以下哪个条件最可能对在这一环境中使用的笔记本电脑产生不利影响? 灰尘 蔬菜罐头工厂使用笔记本电脑来监控生产线。生产环境的环境温度大约是24 摄氏度(75 华氏度)。湿度约为30%。由于装罐设备的使用,因此噪音很高。笔记本电脑放在一个木箱中,木箱三面距离笔记本电脑较近。以下哪个因素最可能对在这一环境中使用的笔记本电脑产 生不利影响? 放置笔记本电脑的木箱 科考队正在用笔记本电脑工作。科学家们工作地点的温度范围为-13 华氏度(-25 摄氏度)到80 华氏度(27 摄氏度)。湿度约为40%。噪声水平较低,但地形崎岖,风速可达每小时45英里(每小时72公里)。在需要时,科学家们会停下脚步,用笔记本电脑输入数据。下列哪一项条件最有可能对于在此环境下使用的笔记本电脑造成负面影响? 温度 以下哪一项是制定预防性维护计划的一部分? 记录每项维护任务的详细信息和频率 技术人员正在施工现场执行PC硬件维护。作为预防性维护计划的一部分,技术人员应该执行什么任务? 进气风扇除尘。 以下哪项任务应作为硬件维护例行程序的一部分? 检查并固定任何松动的电缆。 在测试导致某个问题的若干可能原因时,应该首先测试哪类原因? 最容易最明显的原因 在解决计算机问题时可以使用下列哪两项物品来帮助制定行动计划?(选择两项。) 计算机手册 计算机维修历史记录日志 为客户排除计算机故障之前应该备份哪两类数据?(选择两项。) Internet Explorer收藏夹文件 客户创建的文档

思科网院考试题库

思科网院考试题库 CCNA1 - Module 2 CCNA1 - Module 2 1 Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two.) Network Transport Physical** Data Link** Session 2 What is a primary function of the trailer information added by the data link layer encapsulation? supports error detection** ensures ordered arrival of data provides delivery to correct destination identifies the devices on the local network assists intermediary devices with processing and path selection 3 During the encapsulation process, what occurs at the data link layer? No address is added. The logical address is added. The physical address is added.** The process port number is added.

思科认证考试(CCNA)考试模拟题集锦(1_71题)与答案

思科认证考试(CCNA)考试模拟题集锦(1-71题)及答案 19及答案 1. [OxNx] During a TFTP transfer using Cisco Routers what is the numeric value, in decimal, of the destination port field of the User Datagram Protocol (UDP) header? a) 96 b) 47 c) a random number above 1024 d) 69 e) none of the above 2. [CxNx] What is the standard encapsulation method used by Cisco routers for the Internet Protocol (IP) on it’s Ethernet interfaces? a) SNAP b) ARPA c) NOVELL-ETHER d) DARPA e) Ethernet_802.3 3. [CxNx] What will be the correct command on a Cisco router to set the IP address of an interface assuming you are at the "router(config-if)#" prompt? a) ip address 1.1.1.1 255.255.255.0 b) ip address 1.1.1.1 c) ip 1.1.1.1 d) ip 1.1.1.1 255.255.255.0 e) none of the above 4. [CxNx] Which commands will display the IP addresses of all interfaces on a Cisco Router? (Choose all that apply) a) show ip route b) show ip address c) show ip interface d) show interface e) display ip addresses 5. [CxNx] Which of the following commands will display the contents of the ARP cache of your Cisco router? a) show ip arp cache b) show ip route c) show ip arp d) show arp e) there is no way to display the ARP cache 6. [CxNx] Reverse Address Resolution Protocol (RARP) is the process: a) Where an I P host resolves it’s IP address by broadcasting it’s MAC address to the network and a BOOTP server assigns it an IP address. b) Where an IP host resolves it’s MAC address by broadcasting to the local network it’s IP address. c) Where an IP host tries to resolve the MAC address of a destination by sending a network broadcast. The destination responds to the broadcast with it’s MAC address. d) Where an IP host resolves a destination IP address by sending a broadcast on the local network and the destination host responds with it’s IP address. e)There is no such process. 7. [OxNx] Which of the following applications requires the connection-oriented layer four protocol, TCP? (Choose all that apply)

思科第一学期期末考试考题

1 Refer to the exhibit. Which Layer 2 protocol could be used inside nework A and network C IP TCP UDP Ethernet 2

Refer to the exhibit. Which set of devices contains only intermediary devices A, B, D, G A, B, E, F C, D, G, I G, H, I, J 3 Refer to the exhibit. The headers added at each layer are shown. Which layer adds the destination and source pro to ensure that data is delivered to the correct application physical layer data link layer network layer

transport layer 4The Layer 4 header contains which type of information to aid in the delivery of data service port number host logical address device physical address virtual connection identifier 5Which fiber connector supports full-duplex Ethernet 6Which device should be used for routing a packet to a remote network access switch DHCP server

思科ITE章考试原题及答案

思科I T E章考试原题及 答案 集团文件版本号:(M928-T898-M248-WU2669-I2896-DQ586-M1988)

清洁计算机内部可以减少以下哪种负面环境因素? 灰尘 在清洁计算机机箱内部时,直接喷射压缩空气容易损坏下列哪种组件?风扇 在生产车间,一个家具工厂用笔记本电脑来实现进程监控和报告。生产车间的环境温度大约为 27 摄氏度(80 华氏度)。湿度相当高,大约为70%。风扇安装在通风口顶部。这里的木屑灰尘非常多。以下哪个条件最可能对在这一环境中使用的笔记本电脑产生不利影响? 灰尘 蔬菜罐头工厂使用笔记本电脑来监控生产线。生产环境的环境温度大约是 24 摄氏度(75 华氏度)。湿度约为 30%。由于装罐设备的使用,因此噪音很高。笔记本电脑放在一个木箱中,木箱三面距离笔记本电脑较近。以下哪个因素最可能对在这一环境中使用的笔记本电脑产生不利影响? 放置笔记本电脑的木箱 科考队正在用笔记本电脑工作。科学家们工作地点的温度范围为 -13 华氏度(-25 摄氏度)到 80 华氏度(27 摄氏度)。湿度约为 40%。噪声水平较低,但地形崎岖,风速可达每小时 45 英里(每小时 72 公里)。在需要时,科学家们会停下脚步,用笔记本电脑输入数据。下列哪一项条件最有可能对于在此环境下使用的笔记本电脑造成负面影响?温度 以下哪一项是制定预防性维护计划的一部分?

记录每项维护任务的详细信息和频率 技术人员正在施工现场执行 PC 硬件维护。作为预防性维护计划的一部分,技术人员应该执行什么任务? 进气风扇除尘。 以下哪项任务应作为硬件维护例行程序的一部分? 检查并固定任何松动的电缆。 在测试导致某个问题的若干可能原因时,应该首先测试哪类原因? 最容易最明显的原因 在解决计算机问题时可以使用下列哪两项物品来帮助制定行动计划?(选择两项。) 计算机手册 计算机维修历史记录日志 为客户排除计算机故障之前应该备份哪两类数据?(选择两项。)Internet Explorer 收藏夹文件 客户创建的文档 一位客户反映最近有几个文件无法访问。维修技术人员决定检查硬盘状态和文件系统结构。技术人员问客户是否对磁盘执行了备份,客户回答一个星期之前对磁盘上的另一个逻辑分区进行过备份。技术人员在对磁盘执行诊断步骤之前应该采取什么措施? 将用户数据备份到可移动驱动器。 在故障排除流程中,实施了一种可能的解决方案后,下一个步骤是什么?

CCNA(200-301)题库及答案

Exam A QUESTION 1 A network engineer must create a diagram of a multivendor network.which command must be configured on the Cisco devices so that the topology of the network can be mapped? A.Device(config)#lldp run B.Device(config)#cdp run C.Device(config)# cdp enable D.Device(config)# flow-sampler-map topology Correct Answer: A Section: (none) Explanation Explanation/Reference: QUESTION 2 Which feature on the Cisco Wireless LAN Controller when enabled restricts management access from specific networks? A.CPU ACL B.TACACS C.Flex ACL D.RADIUS Correct Answer: A Section: (none) Explanation Explanation/Reference: Reference: https://https://www.wendangku.net/doc/3814022908.html,/c/en/us/support/docs/wireless-mobility/wlan-security/71978-acl-wlc.html QUESTION 3 When a site-to-site VPN is used, which protocol is responsible for the transport of user data?

思科认证考试题库

CCNA640-802 V13题库试题分析 题库讲解:吴老师(艾迪飞CCIE实验室 首发网站:https://www.wendangku.net/doc/3814022908.html, 1. What are two reasons that a network administrator would use access lists? (Choose two.) A. to control vty access into a router B. to control broadcast traffic through a router C. to filter traffic as it passes through a router D. to filter traffic that originates from the router E. to replace passwords as a line of defense against security incursions Answer: AC 解释一下:在VTY线路下应用ACL,可以控制从VTY线路进来的telnet的流量。 也可以过滤穿越一台路由器的流量。 2. A default Frame Relay WAN is classified as what type of physical network? A. point-to-point B. broadcast multi-access C. nonbroadcast multi-access D. nonbroadcast multipoint E. broadcast point-to-multipoint Answer: C 解释一下:在默认的情况下,帧中继为非广播多路访问链路。但是也可以通过子接口来修改他的网络的类型。 3.Refer to the exhibit. How many broadcast domains exist in the exhibited topology?

CCIE模拟考试题_思科认证考试.doc

CCIE模拟考试题_思科认证考试 1.What statement is FALSE with respect to the operation of Unidirectional Link Detection? A. It negotiates the Unidirectional Link Detection link state during physical signaling. B. It performs tasks that autonegotiation cannot perform. C. It works by exchanging protocol packets between the neighboring devices. D. Both devices on the link must support Unidirectional Link Detection and have it enabled on respective ports. 2.What is true concerning Traffic contract, Traffic shaping, and Traffic policing in ATM networks? A. They are parameters of PNNI set during PNNI configuration. B. They are forms of QoS features used in ATM networks. C. They are types of SVCs. D. They are types of PVCs. E. They are only used between ATM switches to control traffic flows.

CCNA安全题库

CCNA安全 1.最早的网络安全工具是() C A.ACS B. IPS C. IDS D. IPSec 2. 下列哪些属于安全组织()ACD A. SANS B. Cisco C. CERT D. ISC 3. 常见的网络攻击方法有()BCD A. 病毒攻击 B. 侦查攻击 C. 接入攻击 D. 拒绝服务攻击 4. 拒绝服务攻击的主要原因()BD A. 中间人泄露信息 B. 主机或应用程序处理非预期状况失败 C. 缓冲区溢出 D. 网络、主机或应用程序不能处理量非常大的数据 5. 能够帮助获得强密码策略的具体方法()ACD A. 登陆尝试失败一定次数后禁用账号 B. 设置密码有效期 C. 不使用明文密码 D. 使用强密码 6. 提高密码的安全性,应进行如下配置()ABC A. 设置最短密码长度 B. 关闭无用连接 C. 加密配置文件中的所有密码 D. 设置密码有效期 7. 为了获得更好的虚拟登录连接的安全性,应配置以下哪些参数()ABD A. 两次成功登录之间的延迟 B. 如果检测到DoS攻击,应关闭登录 C. 加密所有密码 D. 为登录建立系统日志 8. 以下那些是安全审计工具()BCD A. 思科一步锁闭 B. 安全审计向导 C. 思科自动安全 D. 一键关闭 9. Cisco环境中的网络和管理性AAA安全有以下几个功能组件()ACD A. 认证 B. 控制中心 C. 授权 D. 记账和审计 10. AAA认证管理性接入的用户或远程网络接入的用户,采用()模式请求AAA服务AC A. 包模式 B. 交换模式 C. 字符模式 D. 密文模式 11. Cisco提供()方法来实现AAA服务BC A. 基于AAA授权 B. 本地AAA认证 C. 基于服务器的AAA认证 D. AAA记账 12. 下列哪些是TACACS+的关键因素()ABCD A. 不兼容TACACS和XTACACS B. 认证和授权分离 C. 加密所有通信 D. 使用TCP端口49

思科CCNA第一学期期末考试答案Final

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