Answer:
DiffServ (Differentiated Service)
Explanation:
DiffServ (Differentiated Service) field is used to prioritize traffic in IPv4 packet.
DiffServ is used as QoS (quality of service) on networks at Layer 3, replacing former IPv4 TOS field to effectively deal with the web traffic and prioritization issues starting from 1998.
Answer:
Required code is given below:
Explanation:
def add_to_dict(dictt, key,value):
if key in dictt.keys():
print("Error. Key already exists.")
else:
dictt[key]=value
return dictt
def remove_from_dict(dictt,key):
try:
dictt[key]
dictt.pop(key, None)
return dictt
except KeyError:
print("No such key exists in the dictionary.")
def find_key(dictt,key):
try:
value=dictt[key]
print("Value: ", value)
except KeyError:
print("Key not found.")
Answer:
D. Birmingham
Explanation:
Entering the search criteria "B", would yield Birmingham.
Composition- a work of music, literature, or art
This is important because art helps people express oneself
