Because ________, asynchronous Tasks are frequently used in GUI apps that invoke web services (or perform network communication in general) to ensure that the apps remain responsive.
a) there can be unpredictably long delays while awaiting a web-service response
b) synchronous tasks don’t work well in GUI apps
c) web services are not designed to work with synchronous Tasks
d) memory is limited in GUI-based web services
a) there can be unpredictably long delays while awaiting a web-service response
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To use Microsoft Agent in your applications, you must download all of the following except ________.
a) at least one character file b) a text-to-speech engine c) a speech-recognition engine d) the Microsoft Agent control e) Both a and d.
If you ____________________ an image by decreasing the resolution, Photoshop throws out pixels.
Fill in the blank(s) with the appropriate word(s).
If you have chosen Multi-AZ deployment, in the event of a planned or unplanned outage of your primary DB Instance, Amazon RDS automatically switches to the standby replica. The automatic failover mechanism simply changes the ______ record of the main DB Instance to point to the standby DB Instance.
A. DNAME B. CNAME C. TXT D. MX
Which of the following is a reason to have a remote cold site readily available in case of a disaster in the primary datacenter?
A. It provides a company with a redundant location that mirrors the primary datacenter hardware but requires no data restoration. B. It provides a company with a backup location to install the necessary equipment to restore critical services. C. It provides a company with a backup location equipped with resources necessary for immediate restoration of critical services. D. It provides a company with a redundant location that mirrors the primary datacenter hardware and data.