You are developing a Web page. The user types a credit card number into an input control named cc and clicks a button named submit. The submit button sends the credit card number to the server. A JavaScript library includes a CheckCreditCard function that returns a value of true if the credit card appears to be valid, based on its checksum. You need to ensure that the form cannot be used to submit invalid credit card numbers to the server. What should you do?（）
A. Configure the input control to run on the server. On the submit button， add a server-side OnClick handler that calls CheckCreditCardandrejectstheformsubmission if the input is invalid.
B. On the input control，add an onChange handler that calls CheckCreditCard and cancels the form submission when theinputisinvalid.
Configure the input control and the submit button to run on the server. Add a submit_OnClick handler that calls CheckCreditCardandrejectstheformsubmissionifthe input is invalid.
D. On the form， add an onSubmit handler that calls CheckCreditCard and cancels the form submission if the inputisinvalid.
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对于层的属性，选择（）可以使浏览器仅在需要时显示层的滚动条。
A. 点击标志1
B. 点击标志2
C. 点击标志3
D. 点击标志4
Refer to the exhibit. Host A and Host B are connected to the Catalyst 3550 switch and have beenassigned to their respective VLANs. The rest of the 3550 configuration is the default configuration.Host A is able to ping its default gateway， 10.10.10.1， but is unable to ping Host B. Given theoutput displayed in the exhibit， which statement is true？（）
A. HSRP must be configured on SW1
B. A separate router is required to support interVLAN routing
C. Interface VLAN 10 must be configured on the SW1 switch
D. The global config command ip routing must be configured on the SW1 switch
E. VLANs 10 and 15 must be created in the VLAN database mode
F. VTP must be configured to support interVLAN routing
Refer to the exhibit. VLAN2， VLAN3， and VLAN10 are configured on the switch D-SW1.Host computers are on VLAN 2 （10.1.2.0）， servers are on VLAN 3 （10.1.3.0）， and the management VLAN is on VLAN10 （10.1.10.0）. Hosts are able to ping each other but are unable toreach the servers. On the basis of the exhibited output， which configuration solution could rectifythe problem？（）
A. Enable IP routing on the switch D-SW1
B. Configure a default route that points toward network 200.1.1.0/24
C. Assign an IP address of 10.1.3.1/24 to VLAN3
D. Configure default gateways to IP address 10.1.2.1 on each host
E. Configure default gateways to IP address 10.1.10.1 on each host
F. Configure default gateways to IP address 200.1.1.2 on each host
您可以在代码中创建以下变量：DateTimedateValue；此外，您编写代码以将时间存储在dateValue变量的当地时间。你是序列化所需的价值dateValue变量中，如果在一个时区DateTime对象序列化和反序列化一个不同的时区，表示本地时间结果应自动调整到第二个时区。你决定要使用的表达式。你应该做什么？（）
A. 使用dateValue.ToString("yyyy-MM-ddTHH:mm:ss.fffffff",CultureInfo.InvariantCulture)
B. 使用dateValue.ToBinary()
C. 使用dateValue.Kind
D. 使用dateValue.Ticks
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