Class 12 info

Seven Brothers Fashion Inc. is a fashion company with design and market unit 130 m away from each other. The company recently connected their LANs using Ethernet cable to share stock related information. But after joining the LAN, they are not able to share the information due to loss of signal in between. Which device out of the following should you suggest to be installed for smooth communication?

• Modem

• Repeater

• UPS

Devices that are used to connect different types of networks. It performs the necessary translation so that the connected networks can communicate properly.

• Router

• Modem

• WAN

Which of the following method is used to delete row/column from a dataframe?

• delete()

• remove()

• discard()

• drop()

To delete a row from dataframe, which of the following method is correct? A dataframe is indexed with names.

• df.drop(df.row_index=’Jay’)

• df.drop(‘Jay’)

• df.drop(df.row=’Jay’)

• df.drop(df[‘Jay’])

Which of the following method is correct for following dataframe to delete row by specifying index name? dt= ({‘Year1’:[1200,1220,1500]}, {‘Year2’:1800,1700,1400})

df = pd.DataFrame(dt,index=[‘T1′,’T2’])

Which of the following is correct to delete T2 index record from dataframe?

• df.drop(df.index[‘T2’])

• df.drop(df.idx=’T2′)

• df.drop(index=’T2′)

• df.drop(idx=’T2′)

When you perform delete operation on dataframe, it returns a new dataframe always without changing the old dataframe. To avoid this which parameter you will use to change the original dataframe?

• intact = True

• inplace = True

• update = True

• replace = True

Ankita is working on dataframe wihch has 4 rows and 3 columns. She wrote df.drop(df.index[[1,3]]). Which rows will be deleted from the dataframe?

• No rows

• Row 1 and Row 3

• Rows between 1 and 3

• Row 2

• All rows from row no. 1 to index row no. 3

Which parameter is used to add in drop() method to delete columns?

• column = n (Where n is column number)

• col = n (Where n is column number)

• axis = 0

• axis = 1

If a Nurse sharing the report via Bluetooth from her phone to the Doctor’s phone, considered as which of the network type?

• LAN

• WAN

• MAN

• PAN

In star topology, fault detection is a very difficult process.

• True

• False