Briefly describe IPv6-over-IPv4 tunneling.
What will be an ideal response?
Dual-architecture-capable nodes allow a single computer to communicate to both IPv4-only and IPv6-only destination nodes without any tunneling mechanism in most cases, but often some form of tunneling must be deployed. IPv6-over-IPv4 tunneling is used to allow IPv6 network nodes to send packets over an IPv4 network infrastructure. The situation requiring this tunneling mechanism is on a network in which network nodes are IPv4 only, IPv6 only, or dual enabled. However, the core internetworking routers are primarily IPv4-only enabled while these devices are slowly transitioning to IPv6. Although some routers may be IPv6 capable, until the entire infrastructure is transitioned to IPv6, tunneling will be required to ensure that IPv6 packets are able to traverse those portions of the network that only support IPv4.
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Suppose that we declare all of the database integrity constraints in the database schema so that the DBMS will not allow any transaction to commit if its updates violate any of the integrity constraints. Then, even if we do not use any concurrency control, the database always remains consistent. Explain why we must nevertheless use a concurrency control.
What will be an ideal response?
To change the color of text in a windows form, you could use this.
a. FontDialog control b. ColorDialog control c. FontDialog control with the ShowColor property set to True d. both b and c are correct
You cannot sort data in a report using a field that is already used to group records.
Answer the following statement true (T) or false (F)
Which of the following would be best to use in a search engine when searching for a Windows 10 boot problem?
A) "Windows 10" AND boot AND problem B) Windows 10 boot problem C) Microsoft Windows problem D) Microsoft 10 problem boot* AND issu*