相关试题
【单选题】
】下列荷载中,属于按荷载作用方向分类的是
A. 均布面荷载
B. 线荷载
C. 集中荷载
D. 水平荷载
【单选题】
结构的( )是指在正常维护的条件下,应能在预计的使用年限内满足各项功能要求的性能。
A. 安全性
B. 适用性
C. 耐久性
D. 稳定性
【单选题】
】结构的( )是指在正常使用时,结构应具有良好的工作性能。
A. 稳定性
B. 耐久性
C. 安全性
D. 适用性
【单选题】
】结构的( )是指在正常条件下,结构能承受各种荷载作用和变形而不发生破坏;在发生偶然事件后,结构仍能保持整体稳定性。
A. 适用性
B. 耐久性
C. 安全性
D. 技术性
【单选题】
双向板的受力特点是( )。
A. 对边支承,双向受弯
B. 四边支承,双向受弯
C. 对边支承,单向受弯
D. 四边支承,单向受弯
【单选题】
连续梁、板的受力特点是( )
A. 跨中正弯矩,支座负弯短
B. 跨中正弯矩,支座正弯矩
C. 跨中负弯矩,支座正弯矩
D. 跨中负弯矩,支座负弯矩
【单选题】
】下列荷载中,属于按荷载作用方向分类的是
A. 均布面荷载
B. 线荷载
C. 水平荷载
D. 集中荷载
【单选题】
园柱中纵向钢筋沿周边均匀布置,并不应少于( )根。
【单选题】
柱及其他受压构件中的周边箍筋应做成( )式。
【单选题】
柱中箍筋直径不应小于( )倍纵向钢筋的最大直径。
A. 1/5
B. 1/4
C. 1/3
D. 1/2
【单选题】
柱中全部纵向受力钢筋的配筋率大于3%时,箍筋未端应做成( )。
A. .135°弯钩,且未端平直段长度不应小于5d
B. .135°弯钩,且未端平直段长度不应小于10d
C. .180°弯钩,且未端平直段长度不应小于5d
D. .180°弯钩,且未端平直段长度不应小于10d
【单选题】
下列结构形式中,不属于砌体结构的是( )。
A. 砖砌体结构
B. 框架结构
C. 砌块砌体结构
D. 石砌体结构
【单选题】
表示热轧光圆钢筋的符号为( )
A. HPB300
B. HRB335
C. HRB400E
D. RRB400
【单选题】
】钢材是以( )为主要元素,并含有其他元素的合金材料。
【单选题】
碳素钢中含碳量( )为中碳钢
A. 0.22%
B. 0.42%
C. 0.62%
D. 0.82%
【单选题】
钢筋混凝土结构用钢最主要品种是( )。
A. 热轧钢筋
B. 热处理钢筋
C. 预应力钢丝
D. 钢纹丝
【单选题】
与混凝土的握裹力大,可作为钢筋混凝土用最主要受力钢筋的是( )。
A. 热轧光圆钢筋
B. 热轧带肋钢筋
C. 热处理钢筋
D. 预应力钢丝
【单选题】
带肋钢筋牌号后加( )的钢筋更适合有较高要求的抗震结构使用。
【单选题】
下列指标中,不属于建筑钢材拉伸性能的是( )。
A. 屈服强度
B. 抗拉强度
C. 强屈比
D. 伸长率
【单选题】
结构设计中,钢材强度的取值依据是( )
A. 抗拉强度
B. 抗压强度
C. 屈服强度
D. 极限强度
【单选题】
终凝时间不得长于6.5h的是( )水泥
A. 普通
B. 硅酸盐
C. 矿渣
D. 火山灰
【单选题】
国家标准规定,六大常用水泥的初凝时间均不得短于( )min
【单选题】
水泥体积安定性不良,会使混凝土构件产生( )裂缝,影响工程质量。
【单选题】
改善混凝土耐久性的外加剂是( )。
A. 缓凝剂
B. 早强剂
C. 引气剂
D. 速凝剂
【单选题】
混凝土试件的标准养护条件为( )。
A. 温度20±2℃,相对度95%以上
B. 温度20±2℃,相对度95%以下
C. 温度20±3℃,相对度95%以上
D. 温度20±3℃,相对度95%以下
【单选题】
影响混凝土强度的因素中,属于原材料方面的是( )。
A. 搅拌
B. 振捣
C. 养护的温度
D. 水胶比
【单选题】
抗冻等级()以上的混凝土简称抗冻混凝土。
A. F10
B. F15
C. F50
D. F25
【单选题】
砂浆强度等级立方体试件的边长是( )mm
A. 70
B. 70.2
C. 70.5
D. 70.7
【单选题】
由于其耐磨性差,用于室内地面,可以采用表面结晶处理,提高表面耐磨性和耐酸腐蚀能力的石材是( )。
A. 瓷砖
B. 花岗岩
C. 微晶石
D. 大理石
【单选题】
下列玻璃中,不属于节能装饰型玻璃的是( )。
A. 着色玻璃
B. 镀膜玻璃
C. 平板玻璃
D. 中空玻璃
【单选题】
关于对钢化玻璃的说法,错误的是( )。
A. 钢化玻璃机械强度高
B. 钢化玻璃抗冲击性高
C. 钢化玻璃碎后不易伤人
D. 钢化玻璃在受急冷急热作用时易发生炸裂
【单选题】
下列防水卷材中,具有较好自愈性特点的是( )。
A. APP改性沥青防水卷材
B. 聚乙烯丙纶(涤纶)防水卷材
C. .PVC高分子防水卷材
D. 自粘复合防水卷材
【单选题】
兼有结构层和防水层的双重功效的防水材料是
A. 防水卷材
B. 防水砂浆
C. 防水混凝土
D. 防水涂料
【单选题】
遇火时发泡膨胀,具有优异的防火、水密、气密性能,尤其适合需经常更换或曾减电缆、管道的场合的是( )
A. 有机防火堵料
B. 无机防火堵料
C. 防火包
D. 防火板材
【单选题】
雨期基坑开挖,坡顶散水的竞度最小限值是( )m。
A. 0.8
B. 1.0
C. 1.5
D. 1.6
【单选题】
砌体结构工程施工质量验收规范》规定,施工时所用的小砌块的产品龄期不应小于( )
A. 12d
B. 24d
C. 28d
D. 32d
【单选题】
屋面卷材铺设时,平行于屋脊的卷材搭接缝,其方向应()。
A. 顺流水方向
B. 垂直流水方向
C. 顺年最大频率风向
D. 垂直年最大频率风向
【单选题】
水准仪的主要功能是测量两点间的( )。
【单选题】
基槽底采用钎探时,钢钎每贯入( )mm,记录次锤击数。
A. 200
B. 250
C. 300
D. 350
推荐试题
【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
【多选题】
Which two descriptions of TACACS+ are true？ ___
A. The TACACS+ header is unencrypted
B. It combines a uthentication and authorization
C. It uses TCP as its transport protocol
D. Only the password is encrypted.
E. It uses UDP as its transport protocol.
【多选题】
Which two actions does an IPS perform？ ___
A. it spans the traffic
B. it reflects the traffic back to the sender
C. it encrypts the traffic
D. it terminates the user session or connection of the attacker
E. it reconfigures a device to block the traffic
【多选题】
In which form of fraud does an attacker try to learn information such as login credenti account information by ma squerading as a reputable entity or person in email， IM or communication channels ?___
A. phishing
B. Smurfit
C. Hacking
D. Identity Spoofing
【多选题】
Which two ESA services are available for incoming and outgoing mails ？___
A. anti-DoS
B. reputation filter
C. antispam
D. content filter
E. DLP
【多选题】
What are two reasons to recommend SNMPv 3 over SNMPv2？___
A. SNMPv3 is secure because you can configure authe ntication and privacy
B. SNMPv3 is insecure because it send in formation in clear text
C. SNMPv2 is insecure because it send information in clear text
D. SNMPv3 is a Cisco proprietary protocol
E. SNMPv2 is secure because you can configure authentication and privacy
【多选题】
Which two actions can a zone- based firewall apply to a packet as it transits a zone pair？___
A. drop
B. inspect
C. queue
D. quarantine
【单选题】
Which security principle has been violated if data is altered in an unauthorized manner？___
A. accountability
B. confidentiality
C. availability
D. integrity
【单选题】
Which IKE Phase 1 parameter can you use to require the site-to-site VPN to use a pre-shared ？___
A. encryption
B. authentication
C. group
【单选题】
Which command successfully creates an administrative user with a password of "cisco"on a Cisco router?___
A. username Operator privilege 7 password cisco
B. username Operator privilege 1 password cisco
C. username Operator privilege 15 password cisco
D. username Operator password cisco privilege 15
【单选题】
Which EAP method authenticates a client against Active Directory without the use of client-side 802.1X certificates？___
A. EAP-TLS
B. EAP-MSCHAPv2
C. EAP-PEAP
D.
E. AP-GTC
【单选题】
What is a limitation of network-based IPS？___
A. It must be in dividually configured to support every operating system on the network.
B. It is most effective at the in dividual host level
C. It is unable to monitor attacks across the entire netw ork
D. Large installations require numerous sensors to fully protect the network
【单选题】
When would you configure the ip dhcp snooping trust command on a sw itch？___
A. when the switch is connected to a DHCP server
B. when the switch is working in an edge capacit
C. when the switch is connected to a client system
D. when the switch is serving as an aggregator
【单选题】
How does the 802. 1x supplicant communicate with the authentication server？___
A. The supplicant creates EAP packets and sends them to the authenticator, which encapsulates them into RADIUS and forwards them to the authentication server.
B. The supplicant creates RADIUS packets and sends them to the authe nticator, which encapsulates the m into EAP and forwards them to the a uthentication server.
C. The supplicant creates RADIUS packets and sends them to the authenticator, which translates them into eap and forwards them to the a ut hentication server
D. The supplicant creates
E. AP packets and sends them to the authe nticator, which translates them into radius and forwards them to the authentication server.
【单选题】
Which command do you enter to verify the phase I status of a VPN connection？___
A. sh crypto se ssion
B. debug crypto isakmp
C. sh crypto isakmp sa
D. sh crypto ipsec sa
【单选题】
Refer to the exhibit. what is the e ffect of the given configuration？___
A. It enables authentication，
B. It prevents keychain authentication.
C. The two routers receive normal updates from one another.
D. The two device s are able to pass the message digest to one another.
【单选题】
Which command can you enter to configure OSPF to use hashing to authenticate routing updates？___
A. ip ospf aut hentication message-digest
B. neighbor 192 168.0 112 cost md5
C. ip ospf priority 1
D. ip ospf aut hentication-key
【单选题】
Which command can you enter to verify the status of Cisco lOS Resilient Configuration on a Cisco router?___
A. show secure bootset
B. secure boot-image
C. show binary file
D. ure boot-config
【单选题】
A user on your network inadvertently activates a botnet program that was received as an emai attachment. Which type of mechanism does Cisco Firepower use to detect and block only the botnet attack？___
A. network-based access control rule
B. reputation-based
C. user-ba sed access control rule
D. botnet traffic filter
【单选题】
What does the policy map do in CoPP？___
A. defines service parameters
B. defines packet selection parameters
C. defines the packet filter
D. define s the action to be performed
【单选题】
How is management traffic isolated on a Cisco ASR 1002？___
A. Traffic isolation is done on the vlan level
B. There is no management traffic isolation on a Cisco ASR 1002
C. Traffic is isolated based upon how you configure routing on the device
D. The management interface is configured in a special vRF that provides traffic isolation from the default routing table
【单选题】
Which statement about NaT table evaluation in the asa is true？___
A. After-auto NAT polices are appl d first
B. Manual NAT policies are applied first
C. the asa uses the most specific match
D. Auto NAT policies are applied first
【单选题】
Which information can you display by executing the show crypto ipsec sa command？___
A. ISAKMP SAs that are established between two peers
B. recent changes to the IP address of a peer router
C. proxy infor mation for the connection between two peers
D. IPsec SAs established between two peers
【单选题】
How can you prevent NAT rules from sending traffic to incorrect interfaces？___
A. Assign the output interface in the NAT statement
B. Add the no-proxy-arp command to the nat line.
C. Configure twice NAT instead o bject NAT. 5
D. Use packet-tracer rules to reroute misrouted NAT entries.
【单选题】
What term can be defined as the securing， control， and identification of digital data？___
A. cryptography
B. crypto key
C. cryptoanalysis
D. cryptology
【单选题】
Which feature in the dNS security module provide on and off network DNS protection？___
A. Data Loss Prevention
B. Umbrella
C. Real-time sandboxing
D. Layer-4 monitoring
【单选题】
Which a dverse consequence can occur on a network without BPDu guard ?___
A. The olde st switch can be elected as the root bridge
B. Unauthorized switches that are connected to the network can cause spanning-tree loops
C.
D. ouble tagging can cause the switches to experience CAM table overload.
【单选题】
What configuration is required for multitenancy ?___
A. shared infrastructure
B. multiple carriers
C. co-located resources
D. multiple separate zones
【单选题】
Why does ISE require its own certificate issued by a trusted CA？___
A. ISEs certificate allows guest devices to validate it as a trusted network device
B. It generates certificates for guest devices ba sed on its own certificate
C. It requests certificates for guest devices from the Ca server based on its own certificate.
D. ISE's certificate allows it to join the network security framework
【单选题】
which attack involves large numbers of ICMP packets with a spoofed source IP address？___
A. smurf attack
B. Teardrop attack
C. Nuke attack
D. SYN Flood attack
【单选题】
Which statement about interface and global access rules is true？___
A. Interface access rules are processed before global access rules.
B. Global access rules apply only to outbound traffic， but interface access rules can be applied in either direction
C. The implicit allow is proce ssed after both the global and interface access rules
D. If an interface access rule is applied， the global access rule is ignored
【单选题】
Which type of malicious software can create a back-door into a device or network？___
A. bot
B. worm
C. virus
D. Trojan
【单选题】
Which security term refers to the like lihood that a weakness will be exploited to cause damage to an asset？___
A. threat
B. risk
C. countermeasure
D. vulnerability
【单选题】
Which IPS detection method examines network traffic for preconfigured patterns？___
A. signature-based detection
B. honey-pot detection
C. anomaly-based detection
D. policy-based detection
【单选题】
What is an advantage of split tunneling ？___
A. It allows users with a VpN connection to a corporate network to access the internet with sending traffic across the cor porate network.
B. It allows users with a vpn connection to a corporate network to access the internet by using the vPN for security.
C. It protects traffic on the private network from users on the public network
D. It enables the VPN server to filter traffic more efficiently
【单选题】
Which IDS/IPS state misidentifies acceptable behavior as an attack ？___
A. false negative
B. true positive NEKA G
C. true negative
D. false positive
