Can you give me the link to an article about this so i may help?
Answer:
Explanation:
For example with the hierarchical network design of Cisco (three-layer) it is worth mentioning the following benefits:
- This type of infrastructure is highly reliable
- The complex problem regarding network design is broken into smaller and manageable areas.
- Improved access, access, core layers and distribution
- The hierarchy provides specific functions important in defining its role within the whole network.
Regarding the access layers in the hierarchy the following are core benefits:
- Layer 2 switching
- Virtual access control lists (VACLs)
- Power over Ethernet (PoE) and auxiliary VLANs for VoIP
- Spanning tree
- High availability
- Port security
- Address Resolution Protocol (ARP) inspection
Answer:
if the number of elements in the array are equal to the size of the array then return -1.
Explanation:
We are implementing stack using array.Stack is a LIFO(Last In First Out) type data structure.Insertion and deletion is from one end only.
So while push operation or inserting elements in the stack using array we have to check that the capacity of array is not reached.If reached then no element can be inserted in the stack.If not then we can insert element in the stack.
Answer:
Please find the attachment files of the queries:
Explanation:
In the all queries the select statement is used that selects the defined columns and use the function like sum, join, orderby, and groupby to perform the various operations, in which the sum is used to add columns or rows values, join is used for joining two or more tables, and orderby is used for return the table into ascending or descending order, and groupby is used for the count the value, calculate average and perform other operation and gives its return value.
Answer:
yes
Explanation:
i did some research but don't take my word for it and let me know if it wrong
