更多"A main bearing consists of two shel"的相关试题:
[多项选择]Which two statements best describe the wireless security standard that is defined by WPA (Choose two.)（）。
A. It specifies use of a static encryption key that must be changed frequently to enhance security
B. It requires use of an open authentication method
C. It specifies the use of dynamic encryption keys that change each time a client establishes a connection
D. It requires that all access points and wireless devices use the same encryption key
E. It includes authentication by PSK
[单项选择]Although lube oils used in the main lubricating service systems should have a relatively high flash point to avoid ignition, they can create smoke and fire hazards when they（）
A. are exposed to a vacuum
B. come in contact with extremely hot surfaces
C. are reduced in temperature to just above the pour point
D. become extremely agitated or aerated
[单项选择]The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?（）
A. main bearing shells
B. main bearing
C. steel
D. bearing metal
[多项选择]Which two statements or sets of statements are true about the application of the qos pre-classify command？（）
A. If the classification policy is based upon the ToS byte， the qos pre-classify command is required because the ToS byte only appears in the inner IP header.
B. The ToS byte is copied to the outer header by default. Therefore， the qos pre-classify command is not necessary.
C. With GRE encapsulation， the qos pre-classify command is applied on the tunnel interface. This practice allows for different OoS configurations on each tunnel.
D. With GRE encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface.
E. With IPsec encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface.
[多项选择]Which two data intergrity algorithms are commonly used in VPN solutions?（）
A. HMAC-MD5
B. RSA
C. HMAC-SHA-1
D. DH1
E. DH2
[单项选择]The main bearing shells often have a thin （） of lead or indium to provide a layer giving protection against corrosion.
A. flange
B. flash
C. plate
D. sheet
[多项选择]Which two tasks does the Dynamic Host Configuration Protocol perform?（）
A. Set the IP gateway to be used by the network.
B. Perform host discovery used DHCPDISCOVER message.
C. Configure IP address parameters from DHCP server to a host.
D. Provide an easy management of layer 3 devices.
E. Monitor IP performance using the DHCP server.
F. Assign and renew IP address from the default pool.
[多项选择]Which two statements about using the CHAP authentication mechanism in a PPP link are true?（）
A. CHAP uses a two-way handshake
B. CHAP authentication periodically occurs after link establishment
C. CHAP has no protection from playback attacks
D. CHAP authentication is performed only upon link establishment
E. CHAP uses a three-way handshake
F. CHAP authentication passwords are sent in plaintext
[多项选择]Which two statements are characteristics of a distance vector routing protocol?（）
A. RIP is an example of distance vector routing protocols
B. Updates are periodic and include the entire routing table
C. Routing updates are sent only after topology changes
D. The protocol can be useful in hub-and-spoke and hierarchical networks
E. Convergence is usually faster than with link state protocols
F. Each router has its own view of the topology
[多项选择]Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch?（）
A. SW1#show swithport port-security interface FastEthernet 0/12
B. SW1# show swithport port-secure interface FastEthernet 0/12
C. SW1# show port-secure interface FastEthernet 0/12
D. SW1#show running-config
E. SW1#show port-security interface FastEthernet 0/12
[单项选择]Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
A. Exhaust and scavenging
B. Scavenging and compression
C. Ignition and expansion
D. Exhaust and compression
[多项选择]Which two settings must be configured in order to use the GUI to configure Call Admission Control with voice applications?（）
A. QoS must be set to Platinum
B. WMM must be enabled
C. QoS must be set to Gold
D. TSPEC must be disabled
E. Cisco Compatible Extensions must be disabled
[多项选择]Which two link protocols are used to carry multiple VLANs over a single link?（）
A. VTP
B. 802.1q
C. IGP
D. ISL
E. 802.3u
[多项选择]Which two benefits are provided by using a hierarchical addressing network addressing scheme? （）
A. reduces routing table entries
B. auto-negotiation of media rates
C. efficient utilization of MAC addresses
D. dedicated communications between devices
E. ease of management and troubleshooting
[多项选择]Which two benefits are provided by creating VLANs? （）
A. added security
B. dedicated bandwidth
C. provides segmentation
D. allows switches to route traffic between subinterfaces
E. contains collisions
[多项选择]Which two values are used by Spanning Tree Protocol to elect a root bridge?（）
A. amount of RAM
B. bridge priority
C. IOS version
D. IP address
E. MAC address
F. speed of the links
