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Which one of the following set command removes and returns members of a set?
Openadmin asked 3 years ago • 
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_ returns an array of values.
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Sets are unordered collection of strings
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The _ command is used to remove the expiration from a key.
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Which among the following are the data structures that are commonly used in Redis?
Openadmin asked 3 years ago • 
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_ sets the key to expire within the given number of seconds.
Openadmin asked 3 years ago • 
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Consider “a” as a shared key among two processes A and B. Process A : set a 10, INCRBY a 2, get a. Process B : INCR a, get a. Which of the following will be the final value for a?
Openadmin asked 3 years ago • 
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___ command will add elements to the set.
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Which among the following does Redis Hashes stores?
Openadmin asked 3 years ago • 
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Given is a code snippet : 127.0.0.1:6379> lpush numbers 4 127.0.0.1:6379> lpush numbers 3 127.0.0.1:6379> lpush numbers 7 127.0.0.1:6379> rpush numbers 10 127.0.0.1:6379> rpush numbers 15 127.0.0.1:6379> lpush numbers 12. Which of the following will be the output for the given code?
Openadmin asked 3 years ago • 
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___ returns the number of elements in a set
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Which one is a difference between Memcached and Redis?
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Redis provides multi-state architecture during replication where every instance can both read and write.
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Which is the best way for persistence in Redis?
Openadmin asked 3 years ago • 
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Which is the default persistence mode in Redis?
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Redis is widely used as a secondary database for ___.
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When using Pipelining, will the additional memory used be high?
Openadmin asked 3 years ago • 
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_ is the number of sentinels that need to agree the fact that the master is not reachable and make a failover procedure promoting slave to master.
Openadmin asked 3 years ago • 
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Which of the following is not a Key Value database?
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______ is used for failover process when a master is not working , promoting slave to master?
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Which configuration setting specifies the file to which RDB snapshot dump is saved to _?
Openadmin asked 3 years ago • 
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Redis can be configured to meet different requirements by editing the configuration settings in __.
Openadmin asked 3 years ago • 
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redis provides the output of all commands in
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Redis is single threaded.
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What is the output of the following code ? class A: def __init__(self, value): self.x = value @property def x(self): return self.__x @x.setter def x(self, value): if not isinstance(value, (int, float)): raise ValueError(‘Only Int or float is allowed’) self.__x = value a = A(7) a.x = ‘George’ print(a.x)
Openadmin asked 3 years ago • ,
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Which of the following module helps in creating a context manager using decorator contextmanager ?
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Which of the following methods of a match object, mo, is used to view the grouped portions of match in the form of a tuple
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Which of the following methods of a match object, mo, is used to view the named group portions of match in the form of a dictionary
Openadmin asked 3 years ago • ,
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In a match found by a defined pattern, how to group various portions of a match
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“What is the output of the following code ? v = ‘Hello’ def f(): v = ‘World’ return v print(f()) print(v) “
Openadmin asked 3 years ago • ,
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What is the output of the following code ? def outer(x, y): def inner1(): return x+y def inner2(z): return inner1() + z return inner2 f = outer(10, 25) print(f(15))
Openadmin asked 3 years ago • ,
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What is the output of the following code ? class A: def __init__(self, x , y): self.x = x self.y = y @property def z(self): return self.x + self.y a = A(10, 15) b = A(‘Hello’, ‘!!!’) print(a.z) print(b.z)
Openadmin asked 3 years ago • ,
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What is the output of the following code ? def stringDisplay(): while True: s = yield print(s*3) c = stringDisplay() next(c) c.send(‘Hi!!’)
Openadmin asked 3 years ago • ,
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What is the output of the following code ? from abc import ABC, abstractmethod class A(ABC): @abstractmethod @classmethod def m1(self): print(‘In class A, Method m1.’) class B(A): @classmethod def m1(self): print(‘In class B, Method m1.’) b = B() b.m1() B.m1() A.m1()
Openadmin asked 3 years ago • ,
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What is the output of the following code ? class A: @staticmethod @classmethod def m1(self): print(‘Hello’) A.m1(5)
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What is the output of the following code ? class A: @staticmethod def m1(self): print(‘Static Method’) @classmethod def m1(self): print(‘Class Method’) A.m1()
Openadmin asked 3 years ago • ,
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What is the output of the following code ? from abc import ABC, abstractmethod class A(ABC): @abstractmethod def m1(self): print(‘In class A, Method m1.’) class B(A): @staticmethod def m1(self): print(‘In class B, Method m1.’) b = B() B.m1(b)
Openadmin asked 3 years ago • ,
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What is the output of the following code ? from contextlib import contextmanager @contextmanager def context(): print(‘Entering Context’) yield print(“Exiting Context”) with context(): print(‘In Context’)
Openadmin asked 3 years ago • ,
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What is the output of the following code ? from functools import wraps def decorator_func(func): @wraps(func) def wrapper(*args, **kwargs): return func(*args, **kwargs) return wrapper @decorator_func def square(x): return x**2 print(square.__name__)
Openadmin asked 3 years ago • ,
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What is the output of the following code ? def smart_divide(func): def wrapper(*args): a, b = args if b == 0: print(‘oops! cannot divide’) return return func(*args) return wrapper @smart_divide def divide(a, b): return a / b print(divide.name) print(divide(4, 16)) print(divide(8,0))
Openadmin asked 3 years ago • ,
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