1
2
3
4
第1题：
Every host and router on the Internet has an IP address, which encodes its
A．host number
B．host number and socket
C．network number
D．host number and network number
第2题：
Every host and router on the Internet has an IP address, which encodes its(12).
A．host number
B．network number
C．host number and socket
D．host number and network number
第3题：
● Every host and router on the Internet has an IP address，which encodes its (69) ．
(69) A．host number
B．host number and socket
C．network number
D．host number and network number
【解析】译文：每一个因特网上的主机和路由器都有一个IP地址，它编码了该机的主机号和网络号。
第4题：
A.ARP
B.RARP
C.TCP
D.UDP
E.IP
F.ICMP
G.BootP
第5题：
A network administrator has configured source NAT, translating to an address that is on a locally connected subnet.The administrator sees the translation working, but traffic does not appear to come back.What is causing the problem?（）
A. The host needs to open the telnet port.
B. The host needs a route for the translated address.
C. The administrator must use a proxy-arp policy for the translated address.
D. The administrator must use a security policy, which will allow communication between the zones.
第6题：
A Windows Communication Foundation (WCF) service is self-hosted in a console application. The service implements the IDataAccess contract, which is defined in the MyApplication namespace. The service is implemented in a class named DataAccessService which implements the IDataAccess interface and also is defined in the MyApplication namespace. The hosting code is as follows. (Line numbers are included for reference only.)01 static void Main(string[] args)02 {03 ServiceHost host;04 ...05 host.Open();06 Console.ReadLine();07 host.Close();08 }You need to create a ServiceHost instance and assign it to the host variable. You also need to instantiate the service host.Which line of code should you insert at line 04?（）
A. host = new ServiceHost("MyApplication.DataAccessService");
B. host = new ServiceHost("MyApplication.DataAccess");
C. host = new ServiceHost(typeof(IDataAccess));
D. host = new ServiceHost(typeof(DataAccessService));
第7题：
Host A opens a Telnet connection to Host B. Host A then opens another Telnet connection to Host B. These connections are the only communication between Host A and Host B. The security policy configuration permits both connections.How many sessions exist between Host A and Host B?（）
A.1
B.2
C.3
D.4
第8题：
终宿主(finial host/definitive host)
第9题：
A. DNS traffic is denied.
B. Telnet traffic is denied.
C. SMTP traffic is denied.
D. Ping traffic is permitted.
第10题：
You‘re the systems administrator at Testing, and you create the following access control lists.You then enter the command "ip access-group 101 in" to apply access control list 101 to router TK1s e0 interface.Which of the following Telnet sessions will be blocked as a result of your access lists?（）
A. Telnet sessions from host A to host 5.1.1.10
B. Telnet sessions from host A to host 5.1.3.10
C. Telnet sessions from host B to host 5.1.2.10
D. Telnet sessions from host B to host 5.1.3.8
E. Telnet sessions from host C to host 5.1.3.10
F. Telnet sessions from host F to host 5.1.1.10