【单选题】
How does a zone pair handle traffic if the policy de fination of the zone pair is missing?___
A. It inspects all traffic.
B. It drops all traffic.
C. It permits all traffic wihtout logging
D. It permits and logs all traffic
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相关试题
【单选题】
default how does a zone based firewall handle traffic to add from the self zone？___
A. It permits all traffic without inspection
B. It inspects all traffic to determine how it is handled
C. It permits all traffic after inspection
D. It frops all traffic
【单选题】
Which command should beused to ena ble AAA Authentication to determine if a user can access the privilege command level？___
A. aaa authentication enable local
B. aaa authentication enable level=
C. aaa authentication enable method de fault
D. aaa authentication enable defa ult local
【单选题】
On an ASA， the policy indicates that traffic should not be translated is often referred to as which of the following？___
A. NAT zero
B. NAT forward
C. NAT nul
D. NAT allow
【单选题】
Which protocol offers data Integrity encryption， authentication， and anti-replay functions for IPSec VPN？___
A. ESP protocol
B. IKEv3 Protocol
C. AH protoco
D. IKEv1 Protocol
【单选题】
Which component offers a variety of security Solution， including firwall， IF Antivirus and antiphishing features？___
A. Cisco loS router
B. Cisco ASA 5500 Ser ies security appliance
C. Cisco ASA 5500 X series Next Gen Security appliance
D. Cisco 4200 series IPS appliance
【单选题】
Refer to the exhibit， A Network Secur ity administrator check the ASa firewall NAT policy table rith show nat command， which statement is fails？___
A. There are only reverse translation matches for the REAL SERvER object
B. First policy in the Section 1 is a dynamic nat entry defined in the object configuration
C. NAT policy in section 2 is static entry de fined in the object configuration
D. Translation in Section 3 used when a connection does not matches any entries in first two sections
【单选题】
What is true of an aSa in transparent mode ?___
A. It supports OSPF
B. It requires an IP address for each interface
C. It requires a management IP address
D. It allows the use of dynamic NaT
【单选题】
What is the effect of the ip scp server enable command？___
A. It references an access list that allows specific SCP servers
B. It allows the router to initiate requests to an SCP server
C. It allows the router to become an SCP server
D. It adds SCP to the list of allowed copy functions
【单选题】
How can you mitigate attacks in which the attacker attaches more than one vLan tag to a packet？___
A. Assign an access VLAN to every active port on the switch
B. Disable Ether Channel on the switch
C. Explicitly identity each VLAN allowed across the trunk
D.
E. nable transparent VTP on the switch
【单选题】
Which technology can you implement to centrally mitigate potential threats when users on your network download files that might be malicious？___
A. Enable file-reputation services to inspect all files that traverse the company network and block files with low reputation scores
B. Verify that the compa ny IpS blocks all known malicious website
C. Verity that antivirus software is installed and up to date for all users on your network
D. Implement URL filtering on the perimeter firewall
【单选题】
What is the most common implementation of PaT in a standard networked environment？___
A. configuring multiple external hosts to join the self zo ne and to communicate with one another
B. configuring multiple internal hosts to communicate outside of the network using the outside interface IP address
C. configuring multiple internal hosts to communicate outside of the network by using the inside interface IP address
D. configuring an any any rule to enable external hosts to communicate inside the network
【单选题】
Which component of a bYod architecture provides aAa services for endpoint access ?___
A. Integrated Services Router
B. access point
C. ASA
D. Identity Services
E. ngine
【单选题】
You are configuring a NAT rule on a Cisco ASA ,Which description of a mapped interface is true?___
A. It is mandatory for all firewall modes
B. It is optional in routed mode
C. It is optional in transparent mode
D. It is mandatory for ide ntity NAT only
【单选题】
Which description of the use of a private key is true ？___
A. The sender signs a message using the receivers private key
B. The sender signs a message using their private key
C. The sender encrypts a message using the receivers private key
D. The receiver decrypts a n15ssage using the sender's private key
【单选题】
Which mechanism does the FireAMP Connector use to avoid conflicts with other security applications such as antivirus products ?___
A. Virtualization
B. Containers
C. Sandboxing
D.
E. xclusions
【单选题】
Which network to pology de scribes multiple LANS in a gec? ___
A. SOHO
B. MAN
C. pan
D. CAN
【单选题】
Which statement represents a difference between an access list on an aSa versus an access list on a router？___
A. The asa does not support number access lists
B. The aSa does not support standard access list
C. The asa does not ever use a wildcard mask
D. The asa does not support extended access lists
【单选题】
Which command do you enter to verify the status and settings of an iKE Phase 1 tunnel？___
A. show crypto ipsec as output
B. show crypto isakmp
C. show crypto isakmp policy
D. show crypto ipsec transform
【单选题】
Which feature can help a router or switch maintain packet forwarding and protocol states despite an attack or heavy traffic load on the router or switch？___
A. service Policy
B. Control Plane Policing
C. Policy Map
D. Cisco
E. xpress
F. orwarding
【单选题】
Which STP feature can prevent an attacker from becoming the root bridge by immediately shutting down the interface when it receives a BPDU？___
A. root guard
B. Port Fast
C. BPDU guard
D. BPDU filtering
【单选题】
Which technology can best protect data at rest on a user system？___
A. full-disk encryption
B. IPsec tunnel
C. router ACL
D. network IPS
【多选题】
Which two primary security concerns can you mitigate with a BYOD solution ？___
A. schedule for patching the device
B. securing access to a trusted corporate network
C. compliance with applicable policies
D. connections to public Wi-Fi networks
E. device tagging and invento
【多选题】
choose five___
A. MD5————————inserure
B. DES————————insercure
C. SDES———————legacy
D. SHA-1———————legacy
E. HMAC-MD5—————legacy
【多选题】
Which two characteristics of symmetric encryption are true？___
A. It uses digital certificates
B. It requires more resources than asymmetric ancryption
C. It uses the same key to enctypt and decrupt traffic
D. It uses a public key and a pricate key to encrypt and decrypt traffic.
E. It is faster than asymmetric encryption
【多选题】
which two characteristics of PVLAN are true？___
A. Promiscuous porta can communicate with PVLAN ports.
B. Isolated ports cannot communicate with other ports on the same VLAN
C. Community ports have to be a part of the trunk.
D. They require VTP to be enabled in server mode
E. PVLAN ports can be configured as Ether Channel ports
【多选题】
What are two options for running Cisco SDM?___
A. Running SDM from a mobile device
B. Running SDM from within CiscoWorks
C. Running SDM from a router's flash
D. Running SDM from the Cisco web porta
E. Running SDM from a PC
【多选题】
Which two options are the primary deployment modeles for mobile device management？___
A. multisite
B. cloud-based
C. on premises
D. hybrid cloud basedo
E. single site
【多选题】
Drag the recommendation on the left to the Cryptographic algorithms on the right， Options will be used more than once.___
A. Avoid——————————————DES，MD5
B. Legacy——————————————SDES，SHA1，HMAC-MD5
【多选题】
Which two are valid types of vLans using PVLANS ?___
A. Community VLAN
B. Backup VLAN
C. Secondary VLAN
D. Isolated VLAN
E. Isolated VLAN
【多选题】
Which two commands are used to implement Resilient lOS Configuration ___
A. Secure boot-config
B. copy running-config tftp
C. copy flash:ios bin tftp
D. copy running-config startup-config
E. secure boot-image
【多选题】
Which two types of firewalls work at layer 4 and above ？___
A. Stateful inspection
B. Network Address Translation
C. Circuit-Level gateway
D. Static packet filter
E. Application Level firewall
【多选题】
Which two default settings for port security are true ？___
A. Violation is Protect
B. Violation is Restrict
C. Violation is Shutdown
D. Maximum number of MAC addresses is 2
E. Maximum number of MAC addresses is 1
【多选题】
Which two are characteristics of RADIUS？___
A. Uses UDP ports 1812 /1813
B. Uses TCP port 49
C. Uses UDP port 49
D.
E. ncrypts only the password between user and server
【多选题】
When setting up a site-to-site VPN with PSK authentication on a Cisco router， which two elements must be configured under crypto map？___
A. pfs
B. nat
C. reverse route
D. peer
E. transform-set
【多选题】
When using the Adaptive Security Device Manager（ASDM), which two options are available to add a new root certificate？___
A. Install from SFTP server
B. Usehttps
C. Install from a file
D. Use LDAP
E. Use SCEP
【多选题】
Which two SNMPv3 services support its capabilities as a secure networ k manage protocol？ ___
A. access control
B. the shared secret key
C. authentication
D. authorization
E. accounting
【多选题】
Which two statements about routed firewall mode are true ？___
A. The firewall acts as a routed hop in the network
B. This mode conceals the presence of the firewall
C. The firewall requires a unique iP address for each interface
D. This mode allows the firewall to be added to an existing networ k with minimal additional configuration By default， this mode permits most traffic to pass throug
【多选题】
Which two statements describe DHCP spoofing attacks？___
A. They are used to perform man-in- the-middle attacks
B. They can access most network devices
C. They can modify the flow of traffic in transit. LNGKAIG
D. They protect the identity of ti attacker by masking the DHCP address
E. They can physically modify the network gateway
【多选题】
Which two types of VLANs using PVLANs are valid？___
A. isolated
B. promiscuous
C. backup
D. secondary
E. community
【多选题】
What are two limitations of the self-zone policies on a zone-based firewall？___
A. They are unable to block Https traffic
B. They restrict SNMP traffic.
C. They are unable to support Https traffic
D. They are unable to implement application inspection
E. They are unable to perform rate limiting
推荐试题
【单选题】
两条十字交叉吊线高度相差在（）mm以内时，需做成十字吊线。___
A. 100
B. 200
C. 300
D. 400
E.
【单选题】
电缆吊线在终端杆及角深大于（）m的角杆上应做终结。___
A. 12
B. 13
C. 14
D. 15
E.
【单选题】
同轴电缆在管道中敷设，其曲率半径必须大于外径的（）倍。___
【单选题】
埋式光（电）缆沟中心线应与设计中的中心线吻合，偏差应≤100mm。___
A. 50
B. 100
C. 150
D. 200
E.
【单选题】
人工开挖的埋式光（电）缆沟底宽度宜为（）mm。___
A. 200
B. 250
C. 300
D. 400
E.
【单选题】
市区或市郊埋设的光（电）缆在回填（ ）mm细土后，盖红砖保护。___
A. 100
B. 200
C. 250
D. 300
E.
【单选题】
光缆每杆作一处伸缩弯，伸缩弯在电杆两侧挂钩下垂（ ）mm，并套塑料管保护。___
A. 100
B. 150
C. 200
D. 250
E.
【单选题】
工程初步验收中，检查安装工艺和主要传输特性，抽查和抽测量都应大于（ ）。___
A. 0.05
B. 0.05
C. 0.05
D. 0.05
E.
【单选题】
工程初验中，接地电阻抽测比例应大于（ ）。___
A. 0.05
B. 0.05
C. 0.05
D. 0.05
E.
【单选题】
工程设计中采用的电信设备应取得( )电信设备入网许可证。___
A. 建设部
B. 信息产业部
C. 建设厅
D. 通信管理局
E.
【单选题】
电缆分线设备容量：可接满足年限内所收容的用户数的( )部，结合分线设备的标称系列选用。___
A. 1.1——1.4
B. 1.2——1.5
C. 1.5——1.8
D. 1.8——2
E.
【单选题】
全塑电缆的工作环境温度为( )。___
A. -30℃——+40℃
B. -30℃——+50℃
C. -30℃——+60℃
D. -30℃——+70℃
E.
【单选题】
架空电缆不宜超过（ ）对。___
A. 500
B. 400
C. 300
D. 200
E.
【单选题】
埋式电缆的埋深应大于或等于( )米。___
A. 1.2
B. 1
C. 0.9
D. 0.8
E.
【单选题】
架空电缆线路负荷区划分应以平均( )年出现一次最大冰厚度（缆线上），风速和最低温度等气象条件为依据。___
A. 5
B. 10
C. 15
D. 20
E.
【单选题】
在不可避免时，允许和( )KV以下电力线路合杆架设，但必须采取相应得技术防护措施，并与有关部门签订协议。___
A. 110
B. 35
C. 10
D. 0.6
E.
【单选题】
交接箱（间）必须设置地线，其接地电阻应不得大于()欧。___
A. 50
B. 20
C. 10
D. 5
E.
【单选题】
水深大于()米（指枯水季节的深度）的区域，水底电缆直接放在河底，不加掩埋。___
【单选题】
水底电缆岸滩部分埋深，地质较好且稳定的地段，电缆埋深应不小于（ ）米。___
A. 1.2
B. 1.1
C. 1
D. 0.9
E.
【单选题】
子管内径不得小于光缆外径的（ ）倍。___
A. 2
B. 1.8
C. 1.5
D. 1.2
E.
【单选题】
子管在人手孔内伸出长度宜在（ ）mm。___
A. 100——300
B. 200——400
C. 300——500
D. 400——600
E.
【单选题】
数根子管的等效外径应不大于管孔内径的（ ）。___
A. 0.95
B. 0.9
C. 0.85
D. 0.8
E.
【单选题】
强电线路正常运行状态时，光（电）缆金属构件上感应电动势应不大于（ ）伏。___
A. 80
B. 70
C. 60
D. 50
E.
【单选题】
光（电）缆线路与强电线路交越时，宜垂直通过，在困难情况下，其交越角度应不小于（ ）度。___
A. 65
B. 55
C. 45
D. 30
E.
【单选题】
埋式光缆防雷地线布放长度不小于（ ）公里。___
A. 0.5
B. 1
C. 1.5
D. 2
E.
【单选题】
架空光（电）缆线路吊线应间隔接地。土壤电阻率（Ω·m）100及以下土质，其接地电阻应≤（ ）。___
A. 20
B. 30
C. 35
D. 45
E.
【单选题】
用户线路的传输损耗大于（ ）dB时，则应采取其他技术措施予解决。___
【单选题】
管道光纤在每个人（手）孔中的弯曲预留长度为( ）米。___
A. 0.3—0.5
B. 0.5—1.0
C. 1.0—1.5
D. 1.5—2
E.
【单选题】
在我国抗震设防烈度( )烈度以上地区公用电信网中使用的传输设备，应取得信息产业部颁发的电信抗震性能检测合格证。___
【单选题】
埋式电缆距建筑红线（平行）最小净距（）米。___
A. 0.5
B. 1
C. 1.5
D. 2
E.
【单选题】
年平均雷暴日数大于（）天，以及有雷击历史的地段光（电）缆线路应采取防雷保护措施。___
A. 10
B. 15
C. 20
D. 30
E.
【单选题】
架空电缆线路不宜与电力线路合杆架设。在不可避免时，要采取技术防护措施和与相关部门签订协议，与10KV电力线合杆时，电力线与通信电缆间净距不应小于（）m，且通信电缆应架设在电力线路的下部。___
A. 1
B. 1.5
C. 2
D. 2.5
E.
【单选题】
直列式成端电缆不应超过( )条。___
【单选题】
通信管道工程宜使用天然中砂，平均粒径为（）mm___
A. 0.2-0.4
B. 0.35 -0.5
C. 0.4-0.5
D. 0.5-0.8
E.
【单选题】
通信管道工程宜使用自来水或洁净的（）___
A. 天然水
B. 纯净水
C. 矿泉水
D. 河水
E.
【单选题】
通信管道工程所用塑料管材有聚氯乙烯(PVC一U)管和高密度聚乙烯(HDPE)管。其塑料管的型号及尺寸应符合（）要求。___
A. 建设单位
B. 监理单位
C. 设计规范
D. 设计单位
E.
【单选题】
井盖的外缘与口圈的内缘间隙不应大于（）mm;井盖与口圈盖合后，井盖边缘应高于口圈1-3mm。___
【单选题】
___
A. 117. 68
B. 107.68
C. 127.68
D. 217.68
E.
【单选题】
积水罐用铸铁加工，要求用（）防腐处理___
A. 防锈漆
B. 热涂沥青
C. 镀锌
D. 浓硫酸
E.
【单选题】
___
A. 士5
B. 士lO
C. 士l5
D. 士20
E.
