You need to connect to a colleague's system using the default Microsoft Windows remote desktop application to troubleshoot an application issue. Which port should be opened on the colleague's system firewall to ensure successful remote connection?

Write the code fragment to insert a new node that the reference variable newNode references before the node referenced by the reference variable curr in a doubly linked list.

What will be an ideal response?

Define the five basic relational algebra operations. Define the Join, Intersection, and Division operations in terms of these five basic operations.

? Selection and Projection (Unary) ? Cartesian Product, Union, and Set Difference (Binary). ? Can rewrite ?-Join in terms of the basic selection and Cartesian product operations: ? Can express the intersection operation in terms of the set difference operation: ? Can express the division operation in terms of the basic operations: