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NEW QUESTION: 1
Mark works as a project engineer in Tech Perfect Inc. His office is configured with Windows XP-based computers. The computer that he uses is not configured with a default gateway. He is able to access the Internet, but is not able to use e-mail services via the Internet. However, he is able to access e-mail services via the intranet of the company. Which of the following could be the reason of not being able to access e-mail services via the Internet?
A. Protocols other than TCP/IP
B. Router
C. Proxy server
D. IP packet filter
Answer: C
Explanation:
A proxy server exists between a client's Web-browsing program and a real Internet server. The purpose of the proxy server is to enhance the performance of user requests and filter requests. A proxy server has a database called cache where the most frequently accessed Web pages are stored. The next time such pages are requested, the proxy server is able to suffice the request locally, thereby greatly reducing the access time. Only when a proxy server is unable to fulfill a request locally does it forward the request to a real Internet server. The proxy server can also be used for filtering user requests. This may be done in order to prevent the users from visiting non-genuine sites.
Answer D is incorrect. Transmission Control Protocol/Internet Protocol (TCP/IP) is a suite of standard protocols that govern how data passes between networks. It can be used to provide communication between the basic operating systems on local and wide-area networks (WANs). TCP/IP is the basic communication language or protocol of the Internet. It can also be used as a communications protocol in a private network (either an intranet or an extranet). It is considered the primary protocol of the Internet and the World Wide Web. Answer B is incorrect. IP packet filters allow or block packets from passing through specified ports. They can filter packets based on service type, port number, source computer name, or destination computer name. When packet filtering is enabled, all packets on the external interface are dropped unless they are explicitly allowed, either statically by IP packet filters or dynamically by access policy or publishing rules. Answer C is incorrect. A router is a device that routes data packets between computers in different networks. It is used to connect multiple networks, and it determines the path to be taken by each data packet to its destination computer. A router maintains a routing table of the available routes and their conditions. By using this information, along with distance and cost algorithms, the router determines the best path to be taken by the data packets to the destination computer. A router can connect dissimilar networks, such as Ethernet, FDDI, and Token Ring, and route data packets among them. Routers operate at the network layer (layer 3) of the Open Systems Interconnection (OSI) model.

NEW QUESTION: 2

A. db_ddladmin
B. db_owner
C. db_datawriter
D. db_databaseadmin
Answer: D
Explanation:
Explanation
References:
https://msdn.microsoft.com/en-us/library/ms189121%28v=sql.110%29.aspx

NEW QUESTION: 3
Which of these statements about exporting data from BigQuery is false?
A. The only supported export destination is Google Cloud Storage.
B. The only compression option available is GZIP.
C. To export more than 1 GB of data, you need to put a wildcard in the destination filename.
D. Data can only be exported in JSON or Avro format.
Answer: D
Explanation:
Explanation
Data can be exported in CSV, JSON, or Avro format. If you are exporting nested or repeated data, then CSV format is not supported.
Reference: https://cloud.google.com/bigquery/docs/exporting-data

NEW QUESTION: 4
A customer that has an existing option 11C chassis system with an SCC card is planning t o upgrade to a Communication Server (Rls.) 1000E Rls. 7x system. A CPMG Co-Resident server card will be installed.
Which action must be completed manually?
A. The tone Receiver Terminal Numbers must be re-Programmed with new format
B. The IP address for each Ip media Gateway must be entered in LD 97
C. The IP Phones Terminal Numbers must be entered with a new format
D. The digital Trunk Numbers must be reprogrammed with a new format
Answer: B