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多选题
A brand new network application is required for the Acme Company, and they are considering the use of a connectionless service. What are the characteristics of a connectionless service?（）
A
It uses a Reliable transport mechanism.
B
It uses a Non-reliable transport mechanism
C
It is less bandwidth-intensive than connection oriented services
D
it uses handshaking
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A brand new network application is required for the Acme Company, and they are considering the use of a connectionless service. What are the characteristics of a connectionless service?()
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You develop a Windows Communication Foundation (WCF) service. It is used exclusively as an intranet application and is currently unsecured. You need to ensure that the service meets the following requirements: The service now must be exposed as an Internet application. The service must be secured at the transport level. Impersonation and delegation cannot be enabled. What should you use? （）A、basicHttpBinding and HTTPB、basicHttpBinding and KerberosC、wsHttpBinding and KerberosD、wsHttpBinding and HTTPS
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单选题Your network consists of a single Active Directory domain. The network contains a server that runs Windows Server 2003 Service Pack 2 (SP2). The server has an application that runs as a service. The application uses a domain service account to access other servers in the domain. Security policies require that users reset their passwords every 30 days. After the application runs for a month, the application fails. You need to ensure that the application starts and can access the remote servers. What should you do?（）A
In the Services snap-in， set the service to log on as the Local System account and start the service.B
In the Services snap-in， set the service to log on as the Local Administrator account and start the service.C
In Active Directory Users and Computers， reset the servers computer account. In the Services snap-in， start the service.D
In Active Directory Users and Computers， set the Account Expires option to Never. In the Services snap-in， start the service.
考题
单选题What is a static packet-filtering firewall used for ？（）A
It validates the fact that a packet is either a connection request or a data packet belonging to a connectionB
It evaluates network packets for valid data at the application layer before allowing connectionsC
It analyzes network traffic at the network and transport protocol layersD
It keeps track of the actual communication process through the use of a state table
考题
多选题Which two of these are characteristics of multicast routing？ （）Amulticast routing uses RPFBmulticast routing is connectionless.CIn multicast routing， the source of a packet is known.DWhen network topologies change， multicast distribution trees are not rebuilt， but use the originalpathEMulticast routing is much like unicast routing， with the only difference being that it has a a groupof receivers rather than just one destination
考题
单选题A technician installed a new wireless access point on an existing small office home office (SOHO) network with a selective security option enabled. All wireless computers connect to the new network except one computer that cannot connect to the wireless network. Which of the following is the cause?（）A
The network uses MAC filteringB
The network uses WEPC
The network uses SSID broadcastD
The network uses WPA
考题
多选题Which two statements are true about optical networks?（）ASONET and SDH both use time-division multiplexing.BAn optical transport network system uses time-division multiplexing.CSONET and SDH both use wavelength-division multiplexing.DAn optical transport network system uses wavelength-division multiplexing.
考题
多选题You have a Bridged 1483 service offering where each ATM PVC is assigned a /30 subnet. What are two characteristics of this configuration？（）AIt burns IP addresses.BIt conserves IP addresses.CBoth the client and the ERX Edge Router have IP addresses.DThe client has an IP address， but the ERX Edge Router uses an unnumbered address.
考题
单选题Which of the following is a connectionless transport layer protocol？（）A
TCPB
HTTPC
SMTPD
UDP
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