Technology Questions

Following are the 3 core directives of AngularJS.

1. ng-app : This directive defines and links an AngularJS application to HTML.


2. ng-model : This directive binds the values of AngularJS application data to HTML input controls.


3. ng-bind : This directive binds the AngularJS Application data to HTML tags.

Hub is device to connect two devices, switch is a network bridge which processes and routes data approirately over network layer of OSI Reference model

The Asynchronous Transfer Mode or ATM is a connection technology that works by transmitting data into organized 53 bytes (small) packages through a physical environment with a high efficiency. Packing data into small cells reduces transportation delay so the speeds reached by this technology are very high; it can reach even 10 Gb per second.

MapReduce is a software framework that was created by Google. It`s prime focus was to aid in distributed computing, specifically large sets of data on a group of many computers. The frameworks took its inspiration from the map and reduce functions from functional programming.

Use SELECT DISTINCT ..... in DB2 query

The DISTINCT keyword can be used to return only distinct (different) values.

Syntax:

     SELECT DISTINCT column1,column2

      FROM table_name;

Answer: A, B, E

The name of an ABAP program can be between 1 and 30 characters long.

The following symbols and signs must not be used in program names:
Period (.), comma (,), space ( ), parentheses (), apostrophe (‘), inverted commas ("), equals sign (=), asterisk
(*), accented characters or German umlauts (à, é, ø, ä, ß, and so on), percentage signs (%), or underscores (_).

The object need to be serialized when it’s sent over a network and when it’s state is saved. Exceptions which occur during serialization are:

a. transient fields

b. when the base class is serialized then only base class fields are handled.

c. static fields are ignored because they are not part of any state.