【判断题】
对光（电）缆及其他线路器材的规格、程式、数量应符合设计要求。
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相关试题
【判断题】
埋式光（电）缆或管道沟回土应与路面平齐。
【判断题】
光缆在ODF或单设的光缆终端盒做终端，光缆内的金属构件与ODF接地装置要接触良好。
【判断题】
充气系统的气压告警器低压告警值：地下电缆应≥30KPa;架空电缆应≥20KPa。
【判断题】
在工程试运行结束后，由建设单位组织设计、监理、施工和接受单位参加对工程终验。
【判断题】
工程设计必须保证通信网整体通信质量，技术先进，经济合理，安全可靠。
【判断题】
架空电缆杆距在轻负荷区超过60m，中负荷区超过55m，重负荷区超过50m时，应采用长杆档的建筑方式。
【判断题】
架空电缆长杆档应设顶头拉线。顶头拉线采用比电缆吊线的规格大一级的钢绞线。
【判断题】
管道式电缆建设，在一个管孔中最多可放二条电缆。
【判断题】
一般主干电缆对数分为400对，600对，800对，1000对，1200对等几档。
【判断题】
落地交换箱直接上列的电缆应做气塞。架空交换箱直接上列的电缆中，凡采用充气维护方式应做气塞。
【判断题】
在新区或密度大的高层建筑或建筑群，应设交换箱。室外落地式交换箱应采用混凝土底座，底座与人（手）孔间应采用管道联通，不得采用通道联通。600对及600对以上交接箱，架空安装时应接装在H杆上或建筑物的外墙上。
【判断题】
小区配线电缆的建筑方式宜采用管道敷设方式，局部亦可采用沿墙架设，立杆架设和埋式敷设等方式。
【判断题】
电缆芯线接续采用接线模块或接线及卡接方式。
【判断题】
子管在两人（手）孔间的管道内允许有1个接头。
【判断题】
在随工检验和竣工验收中,发现不符合本规范或有关规定的工作内容,凡由施工单位造成的,应由施工单位负责返修至合格。
【判断题】
水泥制品的规格应进行逐个检验。不同规格的水泥制品严禁混合堆放。
【判断题】
通信管道工程应采用人工碎石或天然砾石,也可以使用风化石。
【判断题】
积水罐用铸铁加工，要求采用镀锌进行防腐处理。
【判断题】
通信管道的各种高程,以水准点为基准,允许误差不应大于±5mm。
【判断题】
通信管道施工中，遇到不稳定土壤或有腐蚀性的土壤时，监理单位应及时提出，待有关单位提出处理意见后方可施工。
【判断题】
挖掘沟（坑）如发现埋藏物，特别是文物、古墓等必须立即停止施工，并负责保护现场，与有关部门联系，在未得到妥善解决之前，施工单位等严禁在该地段内继续工作。
【判断题】
人（手）孔坑的长边与人（手）孔壁长边的外侧间距不应小于0.4m，宽不应小于0.3m。
【判断题】
通信管道工程的沟（坑）挖成后，凡遇被水冲泡的，必须重新进行人工地基处理，否则，严禁进行下一道工序的施工。
【判断题】
挖掘通信管道沟（坑）施工现场，应设置蓝白相间的临时护栏或醒目的标志。
【判断题】
不同种类、标号的水泥不得混合使用；砂和石料的含泥量如超过标准，必须用水洗干净后方能使用。
【判断题】
混凝土的搅拌必须均匀,以混凝土颜色一致为度。搅拌均匀的混凝土应在初凝期内浇筑完毕。
【判断题】
人（手）孔、通道内部净高应符合设计规定，墙体的垂直度允许偏差应不大于±20mm，墙体顶部高程允许偏差不应大于±30mm。
【判断题】
通信管道工程的砌体，严禁使用掺有白灰的混合砂浆进行砌筑。
【判断题】
上覆、盖板混凝土必须达到设计规定的强度以后，方可承受荷载或吊装、运输。
【判断题】
人（手）孔口圈顶部高程应符合设计规定，允许负偏差不应大于20mm。
【判断题】
炎热夏季和严寒冬季施工都要盖草袋,注意混凝土的防晒和防冻。
【判断题】
塑料管道的基础,土质较好的地区(如硬土),挖好沟槽后夯实沟底,回填50mm细砂或细土。
【判断题】
塑料管道的基础,土质稍差的地区（如松软不稳定地区）,挖好沟槽后应做混凝土基础,基础上回填50mm细砂或细土
【判断题】
改、扩建水泥管道工程，可以在原有管道两侧加扩管孔。
【判断题】
塑料管道铺设时，塑料管群的矩形高度不宜小于宽度，但不宜超过一倍。
推荐试题
【单选题】
Which next-generation encryption algorithm supports four variants？___
A. SHA-2
B. SHA-1
C. MD5
D. HMAC
【单选题】
What aims to remove the abil ity to deny an action？___
A. Non-Repudiation
B. Accountability
C. Integrity
D. Deniability
【单选题】
Which statements about the native VLAN is true ？___
A. It is susceptible to VLAN hopping attacks.
B. It is the Cisco recommended VLAN for switch-management traffic
C. It is most secure when it is a ssigned to vLAn 1.
D. It is the cisco-recomme nded vlan for user traffic
【单选题】
There are two versions of IKE:IKEv1 and IKEv2. Both IKEv1 and IKEv2 protocols operate in phases IKEv1 operates in two phases. IKEv2 operates in how many phases？___
【单选题】
What does the dh group refer to？___
A. length of key for hashing C
B. length of key for encryption
C. tunnel lifetime key
D. length of key for key exchange
E. length of key for authentication
【单选题】
Which path do you follow to enable aaa through the SDM ？___
A. Configure Tasks > AAA
B. Configure > Addition Authentication > AAA
C. Configure > AAA
D. Configure > Additional Tasks > AAA
E. Configure Authentication > AAA
【单选题】
which technology cloud be used on top of an MPLS VPN to add confidentiality ？___
A. IPsec
B. 3DES
C. AES
D. SSL
【单选题】
Which term is most closely aligned with the basic purpose of a SIEM solution? ___
A. Non-Repudiation
B. Accountability
C. Causality
D. Repudiation
【单选题】
You have just deployed SNMPv3 in your environment， Your manager asks you to make sure that our SNMP agents can only talk to the SNMP Manager. What would you configure on your SNMI agents to satisfy this request？___
A. A SNMP View containing the SNMP managers
B. Routing Filter with the SNMP managers in it applied outbound
C. A standard ACL containing the SNMP managers applied to the SNMP configuration
D. A SNMP Group containing the SNMP managers
【单选题】
Which feature prevents loops by moving a nontrunking port into an errdisable state when a BPDU is received on that port？___
A. BPDU filte
B. DHCP snooping
C. BPDU guard
D. Port Fast
【单选题】
Which command enables port security to use sticky MAC addresses on a switch？___
A. switchport port-security violation restrict
B. switchport port-security mac-address sticky
C. switchport port-security violation protect
D. switchport port-security
【单选题】
When you edit an IPS subsignature， what is the effect on the parent signature and the family of subsignatures？___
A. The change applies to the parent signature and the entire family of subsignatures
B. The change applies to the parent signature and the subsignature that you edit
C. The change applies only to subsignatures that are numbered sequentially after the subsignature that you edit
D. Other signatures are unaffected， the change applies only to the subsignature that you dit
【单选题】
Which type of mechanism does Cisco FirePOWER de ploy to protect ag detected moving across other networks？___
A. antivirus scanning
B. policy-based
C. reputation-based
D. signature-based
【单选题】
What action must you take on the ise to blacklist a wired device？___
A. Locate the switch through which the device is connected and push an a cl restricting all access by the device
B. Issue a CoA request for the de vice's mac address to each access switch in the network
C. Revoke the device's certificate so it is unable to authenticate to the network
D. Add the device's MAc address to a list of black listed devices
【单选题】
Which type of firewall can perform deep packet inspection？___
A. packet-filtering firewall
B. stateless firewall
C. application firewall
D. personal firewall
【单选题】
What is the main purpose of Control Plane Policing？___
A. to prevent exhaustion of route-proce ssor resources
B. to organize the egress packet queues
C. to define traffic classes
D. to maintain the policy map
【单选题】
Which attack can be prevented by OSPF authentication？___
A. smurf attack
B. IP spoofing attack
C. denial of service attack
D. buffer overflow attack
【单选题】
What is the best definition of hairpinning？___
A. ingress traffic that traverses the outbound interface on a device
B. traffic that enters one interface on a device and that exits through another interface
C. traffic that enters and exits a device through the same interface
D. traffic that tunnels through a device interface
【单选题】
Which SNMPv3 security level provides authentication using HMAC with MD5， but does not use encryption？___
A. authPriv
B. authNo Priv
C. noAuthNoPriv
D. NoauthPriv
【单选题】
You have implemented a dynamic blacklist， using security intelligence to block illicit network activity. However， the blacklist contains several approved connections that users must access for usiness pur poses. Which action can you take to retain the blacklist while allowing users to access the approve d sites？___
A. Create a whitelist and manually add the approved addresses.
B. Disable the dynamic blacklist and deny the specif ic address on a whitelist while permitting the others
C. Edit the dynamic blacklist to remove the approved addresses
D. Disable the dynamic blacklist and create a static blacklist in its place
【单选题】
When connecting to an external resource,you must change a source IP address to use one IP address from a range of 207.165.201.1 to 207.165.1.30. Which option do you implement ?___
A. dynamic source NAT that uses an IP ad dress as a mapped source
B. static destination NAT that uses a subnet as a real de stination
C. dynamic source NAT that uses a range as a mapped source
D. static destination NAT that uses a subnet as a real source
【单选题】
Refer to the exhibit. 【nat（ins，any）dynamic interface】Which ty pe of NaT is configured on a Cisco ASA？___
A. dynamic NAT
B. source identity NAT
C. dynamic PAT
D. identity twice NAT
【单选题】
Which mitigation technology for web-based threats prevents the removal of confidential data from the network？___
A. CTA
B. DCA
C. AMP
D. DLP
【单选题】
Refer to the exhibit. What is the effect of the given configuration？___
A. It establishes the preshared key for the switch
B. It establishes the preshared key for the firewall.
C. It establishes the preshared key for the Cisco ISE appliance
D. It establishes the preshared key for the router.
【多选题】
What are two major considerations when choosing between a SPAN and a TAP when plementing IPS？___
A. the type of analysis the iS will perform
B. the amount of bandwidth available
C. whether RX and TX signals will use separate ports
D. the way in which media errors will be handled
E. the way in which dropped packets will be handled
【多选题】
What are two direct-to-tower methods for redirecting web traffic to Cisco Cloud Web Security？___
A. third-party proxies
B. Cisco Catalyst platforms
C. Cisco NAC Agent
D. hosted PAC files
E. CiSco ISE
【多选题】
Which three descriptions of RADIUS are true？ ___
A. It uses TCP as its transport protocol.
B. Only the password is encrypted
C. It supports multiple transport protocols
D. It uses UDP as its transport protocol
E. It combines authentication and authorization
F. It separates authentication，authorization，and accounting
【多选题】
Which two configurations can prevent VLAN hopping attack from attackers at VLAN 10？___
A. using switchport trunk native vlan 10 command on trunk ports
B. enabling BPDU guard on all access ports
C. creating VLAN 99 and using switchport trunk native vlan 99 command on trunk ports
D. applying ACl between VLAN
E. using switchport mode access command on all host ports
F. using switchport nonegotiate command on dynamic desirable ports
【多选题】
What are two features of transparent firewall mode ___
A. It conceals the presence of the firewall from attackers
B. It allows some traffic that is blocked in routed mode
C. It enables the aSA to perform as a router.
D. It acts as a routed hop in the network.
E. It is configured by default
【多选题】
Which two models of A sa tend to be used in a data center？___
A. 5555X
B. 5585X
C. ASA service module
D. 5512X
E. 5540
F. 5520
【多选题】
Which two statements about hardware-based encrption are true？___
A. It is widely accessible
B. It is potentially easier to compromise than software-based encryption. It requires minimal configuration
C. It requires minimal configuration
D. It can be implemented without impacting performance
E. It is highly cost-effective
【多选题】
In which two modes can the Cisco We b Security appliance be de ployed？___
A. as a transparent proxy using the Secure Sockets Layer protocol
B. as a transparent proxy using the Web Cache Communication Protocol
C. explicit proxy mode
D. as a transparent proxy using the Hyper Text Transfer Protocol
E. explicit active mode
【单选题】
1．三相刀开关的图形符号与交流接触器的主触点符号是___。
A. 一样的
B. 可以互换
C. 有区别的
D. 没有区别
【单选题】
5．熔断器的作用是___。
A. 短路保护
B. 过载保护
C. 失压保护
D. 零压保护
【单选题】
6．热继电器的作用是___。
A. 短路保护
B. 过载保护
C. 失压保护
D. 零压保护
【单选题】
7．交流接触器的作用是可以___接通和断开负载。
【单选题】
8．三相异步电动机的启停控制线路由电源开关、熔断器、___、热继电器、按钮等组成。
A. 时间继电器
B. 速度继电器
C. 交流接触器
D. 漏电保护器
